Home / 17,139.40-25,709.10-14,320.60

Finding the Fourth Proportional to 17,139.40, 25,709.10 and 14,320.60

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Solution

The fourth proportional to 17,139.40, 25,709.10 and 14,320.60 is: 21,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,139.40 : 25,709.10 = 14,320.60 : x
  2. Step 2: Convert to fraction form
    17,139.40/25,709.10 = 14,320.60/x
  3. Step 3: Cross multiply
    17,139.40x = 25,709.10 × 14,320.60
  4. Step 4: Simplify right side
    17,139.40x = 368,169,737.46
  5. Step 5: Solve for x
    x = 368,169,737.46/17,139.40
  6. Step 6: Final answer
    x = 21,480.90

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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.