Home / 28,759.59-43,143.74-9,036.29

Finding the Fourth Proportional to 28,759.59, 43,143.74 and 9,036.29

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Solution

The fourth proportional to 28,759.59, 43,143.74 and 9,036.29 is: 13,555.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.59 : 43,143.74 = 9,036.29 : x
  2. Step 2: Convert to fraction form
    28,759.59/43,143.74 = 9,036.29/x
  3. Step 3: Cross multiply
    28,759.59x = 43,143.74 × 9,036.29
  4. Step 4: Simplify right side
    28,759.59x = 389,859,085.42
  5. Step 5: Solve for x
    x = 389,859,085.42/28,759.59
  6. Step 6: Final answer
    x = 13,555.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.