Home / 62,938.20-94,421.19-20,831.40

Finding the Fourth Proportional to 62,938.20, 94,421.19 and 20,831.40

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Solution

The fourth proportional to 62,938.20, 94,421.19 and 20,831.40 is: 31,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,938.20 : 94,421.19 = 20,831.40 : x
  2. Step 2: Convert to fraction form
    62,938.20/94,421.19 = 20,831.40/x
  3. Step 3: Cross multiply
    62,938.20x = 94,421.19 × 20,831.40
  4. Step 4: Simplify right side
    62,938.20x = 1,966,925,577.37
  5. Step 5: Solve for x
    x = 1,966,925,577.37/62,938.20
  6. Step 6: Final answer
    x = 31,251.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.