Home / 42,597.66-63,918.52-18,921.57

Finding the Fourth Proportional to 42,597.66, 63,918.52 and 18,921.57

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Solution

The fourth proportional to 42,597.66, 63,918.52 and 18,921.57 is: 28,392.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,597.66 : 63,918.52 = 18,921.57 : x
  2. Step 2: Convert to fraction form
    42,597.66/63,918.52 = 18,921.57/x
  3. Step 3: Cross multiply
    42,597.66x = 63,918.52 × 18,921.57
  4. Step 4: Simplify right side
    42,597.66x = 1,209,438,463.48
  5. Step 5: Solve for x
    x = 1,209,438,463.48/42,597.66
  6. Step 6: Final answer
    x = 28,392.13

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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.