Home / 15,419.70-23,129.55-14,909.40

Finding the Fourth Proportional to 15,419.70, 23,129.55 and 14,909.40

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Solution

The fourth proportional to 15,419.70, 23,129.55 and 14,909.40 is: 22,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.70 : 23,129.55 = 14,909.40 : x
  2. Step 2: Convert to fraction form
    15,419.70/23,129.55 = 14,909.40/x
  3. Step 3: Cross multiply
    15,419.70x = 23,129.55 × 14,909.40
  4. Step 4: Simplify right side
    15,419.70x = 344,847,712.77
  5. Step 5: Solve for x
    x = 344,847,712.77/15,419.70
  6. Step 6: Final answer
    x = 22,364.10

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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.