Home / 25,403.91-38,083.19-12,916.95

Finding the Fourth Proportional to 25,403.91, 38,083.19 and 12,916.95

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Solution

The fourth proportional to 25,403.91, 38,083.19 and 12,916.95 is: 19,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,403.91 : 38,083.19 = 12,916.95 : x
  2. Step 2: Convert to fraction form
    25,403.91/38,083.19 = 12,916.95/x
  3. Step 3: Cross multiply
    25,403.91x = 38,083.19 × 12,916.95
  4. Step 4: Simplify right side
    25,403.91x = 491,918,596.49
  5. Step 5: Solve for x
    x = 491,918,596.49/25,403.91
  6. Step 6: Final answer
    x = 19,363.89

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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.