Home / 38,302.80-52,858-21,534.72

Finding the Fourth Proportional to 38,302.80, 52,858 and 21,534.72

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Solution

The fourth proportional to 38,302.80, 52,858 and 21,534.72 is: 29,717.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,302.80 : 52,858 = 21,534.72 : x
  2. Step 2: Convert to fraction form
    38,302.80/52,858 = 21,534.72/x
  3. Step 3: Cross multiply
    38,302.80x = 52,858 × 21,534.72
  4. Step 4: Simplify right side
    38,302.80x = 1,138,282,229.76
  5. Step 5: Solve for x
    x = 1,138,282,229.76/38,302.80
  6. Step 6: Final answer
    x = 29,717.99

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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.