Home / 28,046.16-38,746.08-20,960.28

Finding the Fourth Proportional to 28,046.16, 38,746.08 and 20,960.28

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Solution

The fourth proportional to 28,046.16, 38,746.08 and 20,960.28 is: 28,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.16 : 38,746.08 = 20,960.28 : x
  2. Step 2: Convert to fraction form
    28,046.16/38,746.08 = 20,960.28/x
  3. Step 3: Cross multiply
    28,046.16x = 38,746.08 × 20,960.28
  4. Step 4: Simplify right side
    28,046.16x = 812,128,685.70
  5. Step 5: Solve for x
    x = 812,128,685.70/28,046.16
  6. Step 6: Final answer
    x = 28,956.86

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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.