Home / 42,372.32-63,579-17,430.80

Finding the Fourth Proportional to 42,372.32, 63,579 and 17,430.80

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Solution

The fourth proportional to 42,372.32, 63,579 and 17,430.80 is: 26,154.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,372.32 : 63,579 = 17,430.80 : x
  2. Step 2: Convert to fraction form
    42,372.32/63,579 = 17,430.80/x
  3. Step 3: Cross multiply
    42,372.32x = 63,579 × 17,430.80
  4. Step 4: Simplify right side
    42,372.32x = 1,108,232,833.20
  5. Step 5: Solve for x
    x = 1,108,232,833.20/42,372.32
  6. Step 6: Final answer
    x = 26,154.64

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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.