Home / 20,620.51-30,946.31-15,088.13

Finding the Fourth Proportional to 20,620.51, 30,946.31 and 15,088.13

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Solution

The fourth proportional to 20,620.51, 30,946.31 and 15,088.13 is: 22,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.51 : 30,946.31 = 15,088.13 : x
  2. Step 2: Convert to fraction form
    20,620.51/30,946.31 = 15,088.13/x
  3. Step 3: Cross multiply
    20,620.51x = 30,946.31 × 15,088.13
  4. Step 4: Simplify right side
    20,620.51x = 466,921,793.57
  5. Step 5: Solve for x
    x = 466,921,793.57/20,620.51
  6. Step 6: Final answer
    x = 22,643.56

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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.