Home / 20,867.04-28,824.12-15,552.63

Finding the Fourth Proportional to 20,867.04, 28,824.12 and 15,552.63

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Solution

The fourth proportional to 20,867.04, 28,824.12 and 15,552.63 is: 21,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.04 : 28,824.12 = 15,552.63 : x
  2. Step 2: Convert to fraction form
    20,867.04/28,824.12 = 15,552.63/x
  3. Step 3: Cross multiply
    20,867.04x = 28,824.12 × 15,552.63
  4. Step 4: Simplify right side
    20,867.04x = 448,290,873.44
  5. Step 5: Solve for x
    x = 448,290,873.44/20,867.04
  6. Step 6: Final answer
    x = 21,483.20

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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.