Home / 19,239.56-26,562.84-15,711.20

Finding the Fourth Proportional to 19,239.56, 26,562.84 and 15,711.20

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Solution

The fourth proportional to 19,239.56, 26,562.84 and 15,711.20 is: 21,691.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.56 : 26,562.84 = 15,711.20 : x
  2. Step 2: Convert to fraction form
    19,239.56/26,562.84 = 15,711.20/x
  3. Step 3: Cross multiply
    19,239.56x = 26,562.84 × 15,711.20
  4. Step 4: Simplify right side
    19,239.56x = 417,334,091.81
  5. Step 5: Solve for x
    x = 417,334,091.81/19,239.56
  6. Step 6: Final answer
    x = 21,691.46

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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.