Home / 28,288.70-39,034.04-16,349.72

Finding the Fourth Proportional to 28,288.70, 39,034.04 and 16,349.72

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Solution

The fourth proportional to 28,288.70, 39,034.04 and 16,349.72 is: 22,560.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.70 : 39,034.04 = 16,349.72 : x
  2. Step 2: Convert to fraction form
    28,288.70/39,034.04 = 16,349.72/x
  3. Step 3: Cross multiply
    28,288.70x = 39,034.04 × 16,349.72
  4. Step 4: Simplify right side
    28,288.70x = 638,195,347.55
  5. Step 5: Solve for x
    x = 638,195,347.55/28,288.70
  6. Step 6: Final answer
    x = 22,560.08

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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.