Home / 40,887.57-61,331.35-12,807.86

Finding the Fourth Proportional to 40,887.57, 61,331.35 and 12,807.86

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Solution

The fourth proportional to 40,887.57, 61,331.35 and 12,807.86 is: 19,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,887.57 : 61,331.35 = 12,807.86 : x
  2. Step 2: Convert to fraction form
    40,887.57/61,331.35 = 12,807.86/x
  3. Step 3: Cross multiply
    40,887.57x = 61,331.35 × 12,807.86
  4. Step 4: Simplify right side
    40,887.57x = 785,523,344.41
  5. Step 5: Solve for x
    x = 785,523,344.41/40,887.57
  6. Step 6: Final answer
    x = 19,211.79

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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.