Home / 28,111.74-42,167.61-16,418.58

Finding the Fourth Proportional to 28,111.74, 42,167.61 and 16,418.58

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Solution

The fourth proportional to 28,111.74, 42,167.61 and 16,418.58 is: 24,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,111.74 : 42,167.61 = 16,418.58 : x
  2. Step 2: Convert to fraction form
    28,111.74/42,167.61 = 16,418.58/x
  3. Step 3: Cross multiply
    28,111.74x = 42,167.61 × 16,418.58
  4. Step 4: Simplify right side
    28,111.74x = 692,332,278.19
  5. Step 5: Solve for x
    x = 692,332,278.19/28,111.74
  6. Step 6: Final answer
    x = 24,627.87

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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.