Home / 28,010.52-38,657.24-20,924.64

Finding the Fourth Proportional to 28,010.52, 38,657.24 and 20,924.64

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Solution

The fourth proportional to 28,010.52, 38,657.24 and 20,924.64 is: 28,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.52 : 38,657.24 = 20,924.64 : x
  2. Step 2: Convert to fraction form
    28,010.52/38,657.24 = 20,924.64/x
  3. Step 3: Cross multiply
    28,010.52x = 38,657.24 × 20,924.64
  4. Step 4: Simplify right side
    28,010.52x = 808,888,830.39
  5. Step 5: Solve for x
    x = 808,888,830.39/28,010.52
  6. Step 6: Final answer
    x = 28,878.04

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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.