Home / 28,298.04-39,049.58-15,722.36

Finding the Fourth Proportional to 28,298.04, 39,049.58 and 15,722.36

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Solution

The fourth proportional to 28,298.04, 39,049.58 and 15,722.36 is: 21,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298.04 : 39,049.58 = 15,722.36 : x
  2. Step 2: Convert to fraction form
    28,298.04/39,049.58 = 15,722.36/x
  3. Step 3: Cross multiply
    28,298.04x = 39,049.58 × 15,722.36
  4. Step 4: Simplify right side
    28,298.04x = 613,951,554.61
  5. Step 5: Solve for x
    x = 613,951,554.61/28,298.04
  6. Step 6: Final answer
    x = 21,695.90

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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.