Home / 42,465.16-63,697.80-14,385.43

Finding the Fourth Proportional to 42,465.16, 63,697.80 and 14,385.43

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Solution

The fourth proportional to 42,465.16, 63,697.80 and 14,385.43 is: 21,578.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,465.16 : 63,697.80 = 14,385.43 : x
  2. Step 2: Convert to fraction form
    42,465.16/63,697.80 = 14,385.43/x
  3. Step 3: Cross multiply
    42,465.16x = 63,697.80 × 14,385.43
  4. Step 4: Simplify right side
    42,465.16x = 916,319,924.57
  5. Step 5: Solve for x
    x = 916,319,924.57/42,465.16
  6. Step 6: Final answer
    x = 21,578.16

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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.