Home / 25,341.40-38,020.20-8,712.10

Finding the Fourth Proportional to 25,341.40, 38,020.20 and 8,712.10

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Solution

The fourth proportional to 25,341.40, 38,020.20 and 8,712.10 is: 13,070.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,341.40 : 38,020.20 = 8,712.10 : x
  2. Step 2: Convert to fraction form
    25,341.40/38,020.20 = 8,712.10/x
  3. Step 3: Cross multiply
    25,341.40x = 38,020.20 × 8,712.10
  4. Step 4: Simplify right side
    25,341.40x = 331,235,784.42
  5. Step 5: Solve for x
    x = 331,235,784.42/25,341.40
  6. Step 6: Final answer
    x = 13,070.93

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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.