Home / 42,140.40-63,173.88-15,838.08

Finding the Fourth Proportional to 42,140.40, 63,173.88 and 15,838.08

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Solution

The fourth proportional to 42,140.40, 63,173.88 and 15,838.08 is: 23,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,140.40 : 63,173.88 = 15,838.08 : x
  2. Step 2: Convert to fraction form
    42,140.40/63,173.88 = 15,838.08/x
  3. Step 3: Cross multiply
    42,140.40x = 63,173.88 × 15,838.08
  4. Step 4: Simplify right side
    42,140.40x = 1,000,552,965.35
  5. Step 5: Solve for x
    x = 1,000,552,965.35/42,140.40
  6. Step 6: Final answer
    x = 23,743.32

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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.