Home / 42,159.81-63,188.95-15,484.35

Finding the Fourth Proportional to 42,159.81, 63,188.95 and 15,484.35

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Solution

The fourth proportional to 42,159.81, 63,188.95 and 15,484.35 is: 23,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,159.81 : 63,188.95 = 15,484.35 : x
  2. Step 2: Convert to fraction form
    42,159.81/63,188.95 = 15,484.35/x
  3. Step 3: Cross multiply
    42,159.81x = 63,188.95 × 15,484.35
  4. Step 4: Simplify right side
    42,159.81x = 978,439,817.93
  5. Step 5: Solve for x
    x = 978,439,817.93/42,159.81
  6. Step 6: Final answer
    x = 23,207.88

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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.