Home / 42,025.55-63,047.54-12,445.70

Finding the Fourth Proportional to 42,025.55, 63,047.54 and 12,445.70

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Solution

The fourth proportional to 42,025.55, 63,047.54 and 12,445.70 is: 18,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,025.55 : 63,047.54 = 12,445.70 : x
  2. Step 2: Convert to fraction form
    42,025.55/63,047.54 = 12,445.70/x
  3. Step 3: Cross multiply
    42,025.55x = 63,047.54 × 12,445.70
  4. Step 4: Simplify right side
    42,025.55x = 784,670,484.45
  5. Step 5: Solve for x
    x = 784,670,484.45/42,025.55
  6. Step 6: Final answer
    x = 18,671.27

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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.