Home / 42,397.36-63,597.39-21,325.88

Finding the Fourth Proportional to 42,397.36, 63,597.39 and 21,325.88

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Solution

The fourth proportional to 42,397.36, 63,597.39 and 21,325.88 is: 31,989.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,397.36 : 63,597.39 = 21,325.88 : x
  2. Step 2: Convert to fraction form
    42,397.36/63,597.39 = 21,325.88/x
  3. Step 3: Cross multiply
    42,397.36x = 63,597.39 × 21,325.88
  4. Step 4: Simplify right side
    42,397.36x = 1,356,270,386.47
  5. Step 5: Solve for x
    x = 1,356,270,386.47/42,397.36
  6. Step 6: Final answer
    x = 31,989.50

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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.