Home / 42,135.71-63,212.97-15,840.68

Finding the Fourth Proportional to 42,135.71, 63,212.97 and 15,840.68

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Solution

The fourth proportional to 42,135.71, 63,212.97 and 15,840.68 is: 23,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,135.71 : 63,212.97 = 15,840.68 : x
  2. Step 2: Convert to fraction form
    42,135.71/63,212.97 = 15,840.68/x
  3. Step 3: Cross multiply
    42,135.71x = 63,212.97 × 15,840.68
  4. Step 4: Simplify right side
    42,135.71x = 1,001,336,113.55
  5. Step 5: Solve for x
    x = 1,001,336,113.55/42,135.71
  6. Step 6: Final answer
    x = 23,764.55

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1.5x scale

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.