Home / 25,729.30-38,590.35-8,200.90

Finding the Fourth Proportional to 25,729.30, 38,590.35 and 8,200.90

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Solution

The fourth proportional to 25,729.30, 38,590.35 and 8,200.90 is: 12,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.30 : 38,590.35 = 8,200.90 : x
  2. Step 2: Convert to fraction form
    25,729.30/38,590.35 = 8,200.90/x
  3. Step 3: Cross multiply
    25,729.30x = 38,590.35 × 8,200.90
  4. Step 4: Simplify right side
    25,729.30x = 316,475,601.32
  5. Step 5: Solve for x
    x = 316,475,601.32/25,729.30
  6. Step 6: Final answer
    x = 12,300.20

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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.