Home / 27,999.20-38,688.08-22,380.32

Finding the Fourth Proportional to 27,999.20, 38,688.08 and 22,380.32

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Solution

The fourth proportional to 27,999.20, 38,688.08 and 22,380.32 is: 30,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.20 : 38,688.08 = 22,380.32 : x
  2. Step 2: Convert to fraction form
    27,999.20/38,688.08 = 22,380.32/x
  3. Step 3: Cross multiply
    27,999.20x = 38,688.08 × 22,380.32
  4. Step 4: Simplify right side
    27,999.20x = 865,851,595.40
  5. Step 5: Solve for x
    x = 865,851,595.40/27,999.20
  6. Step 6: Final answer
    x = 30,924.15

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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.