Home / 37,420.60-56,138.70-12,468.40

Finding the Fourth Proportional to 37,420.60, 56,138.70 and 12,468.40

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Solution

The fourth proportional to 37,420.60, 56,138.70 and 12,468.40 is: 18,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,420.60 : 56,138.70 = 12,468.40 : x
  2. Step 2: Convert to fraction form
    37,420.60/56,138.70 = 12,468.40/x
  3. Step 3: Cross multiply
    37,420.60x = 56,138.70 × 12,468.40
  4. Step 4: Simplify right side
    37,420.60x = 699,959,767.08
  5. Step 5: Solve for x
    x = 699,959,767.08/37,420.60
  6. Step 6: Final answer
    x = 18,705.20

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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.