Home / 28,833.32-39,765.13-18,758.08

Finding the Fourth Proportional to 28,833.32, 39,765.13 and 18,758.08

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Solution

The fourth proportional to 28,833.32, 39,765.13 and 18,758.08 is: 25,869.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,833.32 : 39,765.13 = 18,758.08 : x
  2. Step 2: Convert to fraction form
    28,833.32/39,765.13 = 18,758.08/x
  3. Step 3: Cross multiply
    28,833.32x = 39,765.13 × 18,758.08
  4. Step 4: Simplify right side
    28,833.32x = 745,917,492.56
  5. Step 5: Solve for x
    x = 745,917,492.56/28,833.32
  6. Step 6: Final answer
    x = 25,869.99

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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.