Home / 28,870.26-39,840.20-16,294.92

Finding the Fourth Proportional to 28,870.26, 39,840.20 and 16,294.92

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Solution

The fourth proportional to 28,870.26, 39,840.20 and 16,294.92 is: 22,486.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.26 : 39,840.20 = 16,294.92 : x
  2. Step 2: Convert to fraction form
    28,870.26/39,840.20 = 16,294.92/x
  3. Step 3: Cross multiply
    28,870.26x = 39,840.20 × 16,294.92
  4. Step 4: Simplify right side
    28,870.26x = 649,192,871.78
  5. Step 5: Solve for x
    x = 649,192,871.78/28,870.26
  6. Step 6: Final answer
    x = 22,486.56

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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.