Home / 28,353.06-39,132.02-16,423.66

Finding the Fourth Proportional to 28,353.06, 39,132.02 and 16,423.66

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Solution

The fourth proportional to 28,353.06, 39,132.02 and 16,423.66 is: 22,667.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.06 : 39,132.02 = 16,423.66 : x
  2. Step 2: Convert to fraction form
    28,353.06/39,132.02 = 16,423.66/x
  3. Step 3: Cross multiply
    28,353.06x = 39,132.02 × 16,423.66
  4. Step 4: Simplify right side
    28,353.06x = 642,690,991.59
  5. Step 5: Solve for x
    x = 642,690,991.59/28,353.06
  6. Step 6: Final answer
    x = 22,667.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.