Home / 42,168.79-63,253.20-12,607.41

Finding the Fourth Proportional to 42,168.79, 63,253.20 and 12,607.41

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Solution

The fourth proportional to 42,168.79, 63,253.20 and 12,607.41 is: 18,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,168.79 : 63,253.20 = 12,607.41 : x
  2. Step 2: Convert to fraction form
    42,168.79/63,253.20 = 12,607.41/x
  3. Step 3: Cross multiply
    42,168.79x = 63,253.20 × 12,607.41
  4. Step 4: Simplify right side
    42,168.79x = 797,458,709.95
  5. Step 5: Solve for x
    x = 797,458,709.95/42,168.79
  6. Step 6: Final answer
    x = 18,911.11

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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.