Home / 28,823.20-39,736.48-18,207.52

Finding the Fourth Proportional to 28,823.20, 39,736.48 and 18,207.52

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Solution

The fourth proportional to 28,823.20, 39,736.48 and 18,207.52 is: 25,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,823.20 : 39,736.48 = 18,207.52 : x
  2. Step 2: Convert to fraction form
    28,823.20/39,736.48 = 18,207.52/x
  3. Step 3: Cross multiply
    28,823.20x = 39,736.48 × 18,207.52
  4. Step 4: Simplify right side
    28,823.20x = 723,502,754.33
  5. Step 5: Solve for x
    x = 723,502,754.33/28,823.20
  6. Step 6: Final answer
    x = 25,101.40

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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.