Home / 21,295.53-29,388.33-11,864.70

Finding the Fourth Proportional to 21,295.53, 29,388.33 and 11,864.70

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Solution

The fourth proportional to 21,295.53, 29,388.33 and 11,864.70 is: 16,373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.53 : 29,388.33 = 11,864.70 : x
  2. Step 2: Convert to fraction form
    21,295.53/29,388.33 = 11,864.70/x
  3. Step 3: Cross multiply
    21,295.53x = 29,388.33 × 11,864.70
  4. Step 4: Simplify right side
    21,295.53x = 348,683,718.95
  5. Step 5: Solve for x
    x = 348,683,718.95/21,295.53
  6. Step 6: Final answer
    x = 16,373.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.