Home / 42,025.68-63,038.24-12,443.68

Finding the Fourth Proportional to 42,025.68, 63,038.24 and 12,443.68

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Solution

The fourth proportional to 42,025.68, 63,038.24 and 12,443.68 is: 18,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,025.68 : 63,038.24 = 12,443.68 : x
  2. Step 2: Convert to fraction form
    42,025.68/63,038.24 = 12,443.68/x
  3. Step 3: Cross multiply
    42,025.68x = 63,038.24 × 12,443.68
  4. Step 4: Simplify right side
    42,025.68x = 784,427,686.32
  5. Step 5: Solve for x
    x = 784,427,686.32/42,025.68
  6. Step 6: Final answer
    x = 18,665.44

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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.