Home / 28,045.28-41,939.98-20,934.56

Finding the Fourth Proportional to 28,045.28, 41,939.98 and 20,934.56

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Solution

The fourth proportional to 28,045.28, 41,939.98 and 20,934.56 is: 31,306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.28 : 41,939.98 = 20,934.56 : x
  2. Step 2: Convert to fraction form
    28,045.28/41,939.98 = 20,934.56/x
  3. Step 3: Cross multiply
    28,045.28x = 41,939.98 × 20,934.56
  4. Step 4: Simplify right side
    28,045.28x = 877,995,027.71
  5. Step 5: Solve for x
    x = 877,995,027.71/28,045.28
  6. Step 6: Final answer
    x = 31,306.34

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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.