Home / 28,287.06-39,031.80-16,348.09

Finding the Fourth Proportional to 28,287.06, 39,031.80 and 16,348.09

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Solution

The fourth proportional to 28,287.06, 39,031.80 and 16,348.09 is: 22,557.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.06 : 39,031.80 = 16,348.09 : x
  2. Step 2: Convert to fraction form
    28,287.06/39,031.80 = 16,348.09/x
  3. Step 3: Cross multiply
    28,287.06x = 39,031.80 × 16,348.09
  4. Step 4: Simplify right side
    28,287.06x = 638,095,379.26
  5. Step 5: Solve for x
    x = 638,095,379.26/28,287.06
  6. Step 6: Final answer
    x = 22,557.85

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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.