Home / 32,981.68-45,489.54-28,390.24

Finding the Fourth Proportional to 32,981.68, 45,489.54 and 28,390.24

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Solution

The fourth proportional to 32,981.68, 45,489.54 and 28,390.24 is: 39,156.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,981.68 : 45,489.54 = 28,390.24 : x
  2. Step 2: Convert to fraction form
    32,981.68/45,489.54 = 28,390.24/x
  3. Step 3: Cross multiply
    32,981.68x = 45,489.54 × 28,390.24
  4. Step 4: Simplify right side
    32,981.68x = 1,291,458,958.09
  5. Step 5: Solve for x
    x = 1,291,458,958.09/32,981.68
  6. Step 6: Final answer
    x = 39,156.86

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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.