Home / 28,158.52-38,862.88-16,219.56

Finding the Fourth Proportional to 28,158.52, 38,862.88 and 16,219.56

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Solution

The fourth proportional to 28,158.52, 38,862.88 and 16,219.56 is: 22,385.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.52 : 38,862.88 = 16,219.56 : x
  2. Step 2: Convert to fraction form
    28,158.52/38,862.88 = 16,219.56/x
  3. Step 3: Cross multiply
    28,158.52x = 38,862.88 × 16,219.56
  4. Step 4: Simplify right side
    28,158.52x = 630,338,813.93
  5. Step 5: Solve for x
    x = 630,338,813.93/28,158.52
  6. Step 6: Final answer
    x = 22,385.37

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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.