Home / 42,472.08-63,709.74-21,671.28

Finding the Fourth Proportional to 42,472.08, 63,709.74 and 21,671.28

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Solution

The fourth proportional to 42,472.08, 63,709.74 and 21,671.28 is: 32,507.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,472.08 : 63,709.74 = 21,671.28 : x
  2. Step 2: Convert to fraction form
    42,472.08/63,709.74 = 21,671.28/x
  3. Step 3: Cross multiply
    42,472.08x = 63,709.74 × 21,671.28
  4. Step 4: Simplify right side
    42,472.08x = 1,380,671,614.27
  5. Step 5: Solve for x
    x = 1,380,671,614.27/42,472.08
  6. Step 6: Final answer
    x = 32,507.75

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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.