Home / 43,215.50-64,822.92-19,510.23

Finding the Fourth Proportional to 43,215.50, 64,822.92 and 19,510.23

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Solution

The fourth proportional to 43,215.50, 64,822.92 and 19,510.23 is: 29,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215.50 : 64,822.92 = 19,510.23 : x
  2. Step 2: Convert to fraction form
    43,215.50/64,822.92 = 19,510.23/x
  3. Step 3: Cross multiply
    43,215.50x = 64,822.92 × 19,510.23
  4. Step 4: Simplify right side
    43,215.50x = 1,264,710,078.47
  5. Step 5: Solve for x
    x = 1,264,710,078.47/43,215.50
  6. Step 6: Final answer
    x = 29,265.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.