Home / 19,700.31-27,186.38-10,747.74

Finding the Fourth Proportional to 19,700.31, 27,186.38 and 10,747.74

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Solution

The fourth proportional to 19,700.31, 27,186.38 and 10,747.74 is: 14,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,700.31 : 27,186.38 = 10,747.74 : x
  2. Step 2: Convert to fraction form
    19,700.31/27,186.38 = 10,747.74/x
  3. Step 3: Cross multiply
    19,700.31x = 27,186.38 × 10,747.74
  4. Step 4: Simplify right side
    19,700.31x = 292,192,139.83
  5. Step 5: Solve for x
    x = 292,192,139.83/19,700.31
  6. Step 6: Final answer
    x = 14,831.85

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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.