Home / 28,613.88-42,932.64-15,450.76

Finding the Fourth Proportional to 28,613.88, 42,932.64 and 15,450.76

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Solution

The fourth proportional to 28,613.88, 42,932.64 and 15,450.76 is: 23,182.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.88 : 42,932.64 = 15,450.76 : x
  2. Step 2: Convert to fraction form
    28,613.88/42,932.64 = 15,450.76/x
  3. Step 3: Cross multiply
    28,613.88x = 42,932.64 × 15,450.76
  4. Step 4: Simplify right side
    28,613.88x = 663,341,916.81
  5. Step 5: Solve for x
    x = 663,341,916.81/28,613.88
  6. Step 6: Final answer
    x = 23,182.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.