Home / 22,711.80-34,125.30-20,177.40

Finding the Fourth Proportional to 22,711.80, 34,125.30 and 20,177.40

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Solution

The fourth proportional to 22,711.80, 34,125.30 and 20,177.40 is: 30,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,711.80 : 34,125.30 = 20,177.40 : x
  2. Step 2: Convert to fraction form
    22,711.80/34,125.30 = 20,177.40/x
  3. Step 3: Cross multiply
    22,711.80x = 34,125.30 × 20,177.40
  4. Step 4: Simplify right side
    22,711.80x = 688,559,828.22
  5. Step 5: Solve for x
    x = 688,559,828.22/22,711.80
  6. Step 6: Final answer
    x = 30,317.27

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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.