Home / 28,574.67-39,434.34-15,999.42

Finding the Fourth Proportional to 28,574.67, 39,434.34 and 15,999.42

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Solution

The fourth proportional to 28,574.67, 39,434.34 and 15,999.42 is: 22,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,574.67 : 39,434.34 = 15,999.42 : x
  2. Step 2: Convert to fraction form
    28,574.67/39,434.34 = 15,999.42/x
  3. Step 3: Cross multiply
    28,574.67x = 39,434.34 × 15,999.42
  4. Step 4: Simplify right side
    28,574.67x = 630,926,568.08
  5. Step 5: Solve for x
    x = 630,926,568.08/28,574.67
  6. Step 6: Final answer
    x = 22,079.92

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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.