Home / 28,009.29-38,652.75-15,434.04

Finding the Fourth Proportional to 28,009.29, 38,652.75 and 15,434.04

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Solution

The fourth proportional to 28,009.29, 38,652.75 and 15,434.04 is: 21,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009.29 : 38,652.75 = 15,434.04 : x
  2. Step 2: Convert to fraction form
    28,009.29/38,652.75 = 15,434.04/x
  3. Step 3: Cross multiply
    28,009.29x = 38,652.75 × 15,434.04
  4. Step 4: Simplify right side
    28,009.29x = 596,568,089.61
  5. Step 5: Solve for x
    x = 596,568,089.61/28,009.29
  6. Step 6: Final answer
    x = 21,298.94

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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.