Home / 22,831.34-31,516.04-20,437.09

Finding the Fourth Proportional to 22,831.34, 31,516.04 and 20,437.09

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Solution

The fourth proportional to 22,831.34, 31,516.04 and 20,437.09 is: 28,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,831.34 : 31,516.04 = 20,437.09 : x
  2. Step 2: Convert to fraction form
    22,831.34/31,516.04 = 20,437.09/x
  3. Step 3: Cross multiply
    22,831.34x = 31,516.04 × 20,437.09
  4. Step 4: Simplify right side
    22,831.34x = 644,096,145.92
  5. Step 5: Solve for x
    x = 644,096,145.92/22,831.34
  6. Step 6: Final answer
    x = 28,211.05

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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.