Home / 18,700.42-25,831.20-13,864.96

Finding the Fourth Proportional to 18,700.42, 25,831.20 and 13,864.96

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Solution

The fourth proportional to 18,700.42, 25,831.20 and 13,864.96 is: 19,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.42 : 25,831.20 = 13,864.96 : x
  2. Step 2: Convert to fraction form
    18,700.42/25,831.20 = 13,864.96/x
  3. Step 3: Cross multiply
    18,700.42x = 25,831.20 × 13,864.96
  4. Step 4: Simplify right side
    18,700.42x = 358,148,554.75
  5. Step 5: Solve for x
    x = 358,148,554.75/18,700.42
  6. Step 6: Final answer
    x = 19,151.90

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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.