Home / 28,112.16-38,788.56-16,937.76

Finding the Fourth Proportional to 28,112.16, 38,788.56 and 16,937.76

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Solution

The fourth proportional to 28,112.16, 38,788.56 and 16,937.76 is: 23,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,112.16 : 38,788.56 = 16,937.76 : x
  2. Step 2: Convert to fraction form
    28,112.16/38,788.56 = 16,937.76/x
  3. Step 3: Cross multiply
    28,112.16x = 38,788.56 × 16,937.76
  4. Step 4: Simplify right side
    28,112.16x = 656,991,320.03
  5. Step 5: Solve for x
    x = 656,991,320.03/28,112.16
  6. Step 6: Final answer
    x = 23,370.36

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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.