Home / 28,242.01-38,974.01-15,666.76

Finding the Fourth Proportional to 28,242.01, 38,974.01 and 15,666.76

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Solution

The fourth proportional to 28,242.01, 38,974.01 and 15,666.76 is: 21,620.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.01 : 38,974.01 = 15,666.76 : x
  2. Step 2: Convert to fraction form
    28,242.01/38,974.01 = 15,666.76/x
  3. Step 3: Cross multiply
    28,242.01x = 38,974.01 × 15,666.76
  4. Step 4: Simplify right side
    28,242.01x = 610,596,460.91
  5. Step 5: Solve for x
    x = 610,596,460.91/28,242.01
  6. Step 6: Final answer
    x = 21,620.15

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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.