Home / 22,470.20-33,705.30-9,990.20

Finding the Fourth Proportional to 22,470.20, 33,705.30 and 9,990.20

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Solution

The fourth proportional to 22,470.20, 33,705.30 and 9,990.20 is: 14,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,470.20 : 33,705.30 = 9,990.20 : x
  2. Step 2: Convert to fraction form
    22,470.20/33,705.30 = 9,990.20/x
  3. Step 3: Cross multiply
    22,470.20x = 33,705.30 × 9,990.20
  4. Step 4: Simplify right side
    22,470.20x = 336,722,688.06
  5. Step 5: Solve for x
    x = 336,722,688.06/22,470.20
  6. Step 6: Final answer
    x = 14,985.30

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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.