Home / 28,292.34-42,373.88-13,511.71

Finding the Fourth Proportional to 28,292.34, 42,373.88 and 13,511.71

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Solution

The fourth proportional to 28,292.34, 42,373.88 and 13,511.71 is: 20,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.34 : 42,373.88 = 13,511.71 : x
  2. Step 2: Convert to fraction form
    28,292.34/42,373.88 = 13,511.71/x
  3. Step 3: Cross multiply
    28,292.34x = 42,373.88 × 13,511.71
  4. Step 4: Simplify right side
    28,292.34x = 572,543,690.22
  5. Step 5: Solve for x
    x = 572,543,690.22/28,292.34
  6. Step 6: Final answer
    x = 20,236.70

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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.