Home / 15,740.20-23,610.30-15,135.40

Finding the Fourth Proportional to 15,740.20, 23,610.30 and 15,135.40

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Solution

The fourth proportional to 15,740.20, 23,610.30 and 15,135.40 is: 22,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.20 : 23,610.30 = 15,135.40 : x
  2. Step 2: Convert to fraction form
    15,740.20/23,610.30 = 15,135.40/x
  3. Step 3: Cross multiply
    15,740.20x = 23,610.30 × 15,135.40
  4. Step 4: Simplify right side
    15,740.20x = 357,351,334.62
  5. Step 5: Solve for x
    x = 357,351,334.62/15,740.20
  6. Step 6: Final answer
    x = 22,703.10

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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.