Home / 28,800.32-39,743.52-16,223.36

Finding the Fourth Proportional to 28,800.32, 39,743.52 and 16,223.36

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Solution

The fourth proportional to 28,800.32, 39,743.52 and 16,223.36 is: 22,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.32 : 39,743.52 = 16,223.36 : x
  2. Step 2: Convert to fraction form
    28,800.32/39,743.52 = 16,223.36/x
  3. Step 3: Cross multiply
    28,800.32x = 39,743.52 × 16,223.36
  4. Step 4: Simplify right side
    28,800.32x = 644,773,432.63
  5. Step 5: Solve for x
    x = 644,773,432.63/28,800.32
  6. Step 6: Final answer
    x = 22,387.72

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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.