Home / 20,648.52-28,464.96-15,263.04

Finding the Fourth Proportional to 20,648.52, 28,464.96 and 15,263.04

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Solution

The fourth proportional to 20,648.52, 28,464.96 and 15,263.04 is: 21,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.52 : 28,464.96 = 15,263.04 : x
  2. Step 2: Convert to fraction form
    20,648.52/28,464.96 = 15,263.04/x
  3. Step 3: Cross multiply
    20,648.52x = 28,464.96 × 15,263.04
  4. Step 4: Simplify right side
    20,648.52x = 434,461,823.08
  5. Step 5: Solve for x
    x = 434,461,823.08/20,648.52
  6. Step 6: Final answer
    x = 21,040.82

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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.