Home / 42,616.81-63,825.47-21,505.46

Finding the Fourth Proportional to 42,616.81, 63,825.47 and 21,505.46

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Solution

The fourth proportional to 42,616.81, 63,825.47 and 21,505.46 is: 32,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,616.81 : 63,825.47 = 21,505.46 : x
  2. Step 2: Convert to fraction form
    42,616.81/63,825.47 = 21,505.46/x
  3. Step 3: Cross multiply
    42,616.81x = 63,825.47 × 21,505.46
  4. Step 4: Simplify right side
    42,616.81x = 1,372,595,746.42
  5. Step 5: Solve for x
    x = 1,372,595,746.42/42,616.81
  6. Step 6: Final answer
    x = 32,207.85

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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.