Home / 42,159.29-63,220.10-12,569.18

Finding the Fourth Proportional to 42,159.29, 63,220.10 and 12,569.18

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Solution

The fourth proportional to 42,159.29, 63,220.10 and 12,569.18 is: 18,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,159.29 : 63,220.10 = 12,569.18 : x
  2. Step 2: Convert to fraction form
    42,159.29/63,220.10 = 12,569.18/x
  3. Step 3: Cross multiply
    42,159.29x = 63,220.10 × 12,569.18
  4. Step 4: Simplify right side
    42,159.29x = 794,624,437.57
  5. Step 5: Solve for x
    x = 794,624,437.57/42,159.29
  6. Step 6: Final answer
    x = 18,848.15

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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.