Home / 37,387.30-56,041.57-12,420.64

Finding the Fourth Proportional to 37,387.30, 56,041.57 and 12,420.64

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Solution

The fourth proportional to 37,387.30, 56,041.57 and 12,420.64 is: 18,617.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,387.30 : 56,041.57 = 12,420.64 : x
  2. Step 2: Convert to fraction form
    37,387.30/56,041.57 = 12,420.64/x
  3. Step 3: Cross multiply
    37,387.30x = 56,041.57 × 12,420.64
  4. Step 4: Simplify right side
    37,387.30x = 696,072,251.58
  5. Step 5: Solve for x
    x = 696,072,251.58/37,387.30
  6. Step 6: Final answer
    x = 18,617.88

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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.