Home / 20,478.24-28,260.72-16,007.04

Finding the Fourth Proportional to 20,478.24, 28,260.72 and 16,007.04

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Solution

The fourth proportional to 20,478.24, 28,260.72 and 16,007.04 is: 22,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478.24 : 28,260.72 = 16,007.04 : x
  2. Step 2: Convert to fraction form
    20,478.24/28,260.72 = 16,007.04/x
  3. Step 3: Cross multiply
    20,478.24x = 28,260.72 × 16,007.04
  4. Step 4: Simplify right side
    20,478.24x = 452,370,475.47
  5. Step 5: Solve for x
    x = 452,370,475.47/20,478.24
  6. Step 6: Final answer
    x = 22,090.30

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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.