Home / 20,759.63-28,648.28-12,376.13

Finding the Fourth Proportional to 20,759.63, 28,648.28 and 12,376.13

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Solution

The fourth proportional to 20,759.63, 28,648.28 and 12,376.13 is: 17,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.63 : 28,648.28 = 12,376.13 : x
  2. Step 2: Convert to fraction form
    20,759.63/28,648.28 = 12,376.13/x
  3. Step 3: Cross multiply
    20,759.63x = 28,648.28 × 12,376.13
  4. Step 4: Simplify right side
    20,759.63x = 354,554,725.26
  5. Step 5: Solve for x
    x = 354,554,725.26/20,759.63
  6. Step 6: Final answer
    x = 17,079.05

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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.