Home / 42,020.02-63,030.68-12,440.85

Finding the Fourth Proportional to 42,020.02, 63,030.68 and 12,440.85

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Solution

The fourth proportional to 42,020.02, 63,030.68 and 12,440.85 is: 18,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,020.02 : 63,030.68 = 12,440.85 : x
  2. Step 2: Convert to fraction form
    42,020.02/63,030.68 = 12,440.85/x
  3. Step 3: Cross multiply
    42,020.02x = 63,030.68 × 12,440.85
  4. Step 4: Simplify right side
    42,020.02x = 784,155,235.28
  5. Step 5: Solve for x
    x = 784,155,235.28/42,020.02
  6. Step 6: Final answer
    x = 18,661.47

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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.