Home / 27,831.50-38,407.56-15,084.89

Finding the Fourth Proportional to 27,831.50, 38,407.56 and 15,084.89

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Solution

The fourth proportional to 27,831.50, 38,407.56 and 15,084.89 is: 20,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,831.50 : 38,407.56 = 15,084.89 : x
  2. Step 2: Convert to fraction form
    27,831.50/38,407.56 = 15,084.89/x
  3. Step 3: Cross multiply
    27,831.50x = 38,407.56 × 15,084.89
  4. Step 4: Simplify right side
    27,831.50x = 579,373,817.77
  5. Step 5: Solve for x
    x = 579,373,817.77/27,831.50
  6. Step 6: Final answer
    x = 20,817.20

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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.