Home / 28,296.96-39,055.20-18,737.04

Finding the Fourth Proportional to 28,296.96, 39,055.20 and 18,737.04

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Solution

The fourth proportional to 28,296.96, 39,055.20 and 18,737.04 is: 25,860.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.96 : 39,055.20 = 18,737.04 : x
  2. Step 2: Convert to fraction form
    28,296.96/39,055.20 = 18,737.04/x
  3. Step 3: Cross multiply
    28,296.96x = 39,055.20 × 18,737.04
  4. Step 4: Simplify right side
    28,296.96x = 731,778,844.61
  5. Step 5: Solve for x
    x = 731,778,844.61/28,296.96
  6. Step 6: Final answer
    x = 25,860.69

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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.