Home / 19,672.71-27,148.47-10,720.18

Finding the Fourth Proportional to 19,672.71, 27,148.47 and 10,720.18

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Solution

The fourth proportional to 19,672.71, 27,148.47 and 10,720.18 is: 14,793.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.71 : 27,148.47 = 10,720.18 : x
  2. Step 2: Convert to fraction form
    19,672.71/27,148.47 = 10,720.18/x
  3. Step 3: Cross multiply
    19,672.71x = 27,148.47 × 10,720.18
  4. Step 4: Simplify right side
    19,672.71x = 291,036,478.86
  5. Step 5: Solve for x
    x = 291,036,478.86/19,672.71
  6. Step 6: Final answer
    x = 14,793.92

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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.