Home / 28,449.06-39,242.76-18,383.41

Finding the Fourth Proportional to 28,449.06, 39,242.76 and 18,383.41

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Solution

The fourth proportional to 28,449.06, 39,242.76 and 18,383.41 is: 25,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.06 : 39,242.76 = 18,383.41 : x
  2. Step 2: Convert to fraction form
    28,449.06/39,242.76 = 18,383.41/x
  3. Step 3: Cross multiply
    28,449.06x = 39,242.76 × 18,383.41
  4. Step 4: Simplify right side
    28,449.06x = 721,415,746.61
  5. Step 5: Solve for x
    x = 721,415,746.61/28,449.06
  6. Step 6: Final answer
    x = 25,358.16

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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.