Home / 22,478.28-31,002.48-19,132.08

Finding the Fourth Proportional to 22,478.28, 31,002.48 and 19,132.08

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Solution

The fourth proportional to 22,478.28, 31,002.48 and 19,132.08 is: 26,387.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,478.28 : 31,002.48 = 19,132.08 : x
  2. Step 2: Convert to fraction form
    22,478.28/31,002.48 = 19,132.08/x
  3. Step 3: Cross multiply
    22,478.28x = 31,002.48 × 19,132.08
  4. Step 4: Simplify right side
    22,478.28x = 593,141,927.56
  5. Step 5: Solve for x
    x = 593,141,927.56/22,478.28
  6. Step 6: Final answer
    x = 26,387.34

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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.