Home / 22,666.56-31,158.88-20,251.20

Finding the Fourth Proportional to 22,666.56, 31,158.88 and 20,251.20

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Solution

The fourth proportional to 22,666.56, 31,158.88 and 20,251.20 is: 27,838.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,666.56 : 31,158.88 = 20,251.20 : x
  2. Step 2: Convert to fraction form
    22,666.56/31,158.88 = 20,251.20/x
  3. Step 3: Cross multiply
    22,666.56x = 31,158.88 × 20,251.20
  4. Step 4: Simplify right side
    22,666.56x = 631,004,710.66
  5. Step 5: Solve for x
    x = 631,004,710.66/22,666.56
  6. Step 6: Final answer
    x = 27,838.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.