Home / 28,572.47-39,434.81-16,642.89

Finding the Fourth Proportional to 28,572.47, 39,434.81 and 16,642.89

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Solution

The fourth proportional to 28,572.47, 39,434.81 and 16,642.89 is: 22,969.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572.47 : 39,434.81 = 16,642.89 : x
  2. Step 2: Convert to fraction form
    28,572.47/39,434.81 = 16,642.89/x
  3. Step 3: Cross multiply
    28,572.47x = 39,434.81 × 16,642.89
  4. Step 4: Simplify right side
    28,572.47x = 656,309,205.00
  5. Step 5: Solve for x
    x = 656,309,205.00/28,572.47
  6. Step 6: Final answer
    x = 22,969.98

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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.