Home / 28,367.52-39,148.56-16,428.72

Finding the Fourth Proportional to 28,367.52, 39,148.56 and 16,428.72

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Solution

The fourth proportional to 28,367.52, 39,148.56 and 16,428.72 is: 22,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.52 : 39,148.56 = 16,428.72 : x
  2. Step 2: Convert to fraction form
    28,367.52/39,148.56 = 16,428.72/x
  3. Step 3: Cross multiply
    28,367.52x = 39,148.56 × 16,428.72
  4. Step 4: Simplify right side
    28,367.52x = 643,160,730.64
  5. Step 5: Solve for x
    x = 643,160,730.64/28,367.52
  6. Step 6: Final answer
    x = 22,672.43

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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.