Home / 37,420.20-56,129.10-12,461.40

Finding the Fourth Proportional to 37,420.20, 56,129.10 and 12,461.40

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Solution

The fourth proportional to 37,420.20, 56,129.10 and 12,461.40 is: 18,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,420.20 : 56,129.10 = 12,461.40 : x
  2. Step 2: Convert to fraction form
    37,420.20/56,129.10 = 12,461.40/x
  3. Step 3: Cross multiply
    37,420.20x = 56,129.10 × 12,461.40
  4. Step 4: Simplify right side
    37,420.20x = 699,447,166.74
  5. Step 5: Solve for x
    x = 699,447,166.74/37,420.20
  6. Step 6: Final answer
    x = 18,691.70

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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.