Home / 28,643.60-39,542.28-18,049.52

Finding the Fourth Proportional to 28,643.60, 39,542.28 and 18,049.52

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Solution

The fourth proportional to 28,643.60, 39,542.28 and 18,049.52 is: 24,917.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643.60 : 39,542.28 = 18,049.52 : x
  2. Step 2: Convert to fraction form
    28,643.60/39,542.28 = 18,049.52/x
  3. Step 3: Cross multiply
    28,643.60x = 39,542.28 × 18,049.52
  4. Step 4: Simplify right side
    28,643.60x = 713,719,173.71
  5. Step 5: Solve for x
    x = 713,719,173.71/28,643.60
  6. Step 6: Final answer
    x = 24,917.23

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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.