Home / 21,798.71-30,091.36-14,734.70

Finding the Fourth Proportional to 21,798.71, 30,091.36 and 14,734.70

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Solution

The fourth proportional to 21,798.71, 30,091.36 and 14,734.70 is: 20,340.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.71 : 30,091.36 = 14,734.70 : x
  2. Step 2: Convert to fraction form
    21,798.71/30,091.36 = 14,734.70/x
  3. Step 3: Cross multiply
    21,798.71x = 30,091.36 × 14,734.70
  4. Step 4: Simplify right side
    21,798.71x = 443,386,974.90
  5. Step 5: Solve for x
    x = 443,386,974.90/21,798.71
  6. Step 6: Final answer
    x = 20,340.06

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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.