Home / 20,610.72-28,404-18,934.56

Finding the Fourth Proportional to 20,610.72, 28,404 and 18,934.56

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Solution

The fourth proportional to 20,610.72, 28,404 and 18,934.56 is: 26,094.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.72 : 28,404 = 18,934.56 : x
  2. Step 2: Convert to fraction form
    20,610.72/28,404 = 18,934.56/x
  3. Step 3: Cross multiply
    20,610.72x = 28,404 × 18,934.56
  4. Step 4: Simplify right side
    20,610.72x = 537,817,242.24
  5. Step 5: Solve for x
    x = 537,817,242.24/20,610.72
  6. Step 6: Final answer
    x = 26,094.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.