Home / 42,275.16-63,421.65-15,979.32

Finding the Fourth Proportional to 42,275.16, 63,421.65 and 15,979.32

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Solution

The fourth proportional to 42,275.16, 63,421.65 and 15,979.32 is: 23,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,275.16 : 63,421.65 = 15,979.32 : x
  2. Step 2: Convert to fraction form
    42,275.16/63,421.65 = 15,979.32/x
  3. Step 3: Cross multiply
    42,275.16x = 63,421.65 × 15,979.32
  4. Step 4: Simplify right side
    42,275.16x = 1,013,434,840.28
  5. Step 5: Solve for x
    x = 1,013,434,840.28/42,275.16
  6. Step 6: Final answer
    x = 23,972.35

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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.