Home / 14,150.40-21,225.60-13,931.70

Finding the Fourth Proportional to 14,150.40, 21,225.60 and 13,931.70

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Solution

The fourth proportional to 14,150.40, 21,225.60 and 13,931.70 is: 20,897.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,150.40 : 21,225.60 = 13,931.70 : x
  2. Step 2: Convert to fraction form
    14,150.40/21,225.60 = 13,931.70/x
  3. Step 3: Cross multiply
    14,150.40x = 21,225.60 × 13,931.70
  4. Step 4: Simplify right side
    14,150.40x = 295,708,691.52
  5. Step 5: Solve for x
    x = 295,708,691.52/14,150.40
  6. Step 6: Final answer
    x = 20,897.55

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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.