Home / 28,591.74-42,915.34-13,811.04

Finding the Fourth Proportional to 28,591.74, 42,915.34 and 13,811.04

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Solution

The fourth proportional to 28,591.74, 42,915.34 and 13,811.04 is: 20,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.74 : 42,915.34 = 13,811.04 : x
  2. Step 2: Convert to fraction form
    28,591.74/42,915.34 = 13,811.04/x
  3. Step 3: Cross multiply
    28,591.74x = 42,915.34 × 13,811.04
  4. Step 4: Simplify right side
    28,591.74x = 592,705,477.35
  5. Step 5: Solve for x
    x = 592,705,477.35/28,591.74
  6. Step 6: Final answer
    x = 20,729.95

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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.