Home / 28,532.17-39,379.80-19,117.09

Finding the Fourth Proportional to 28,532.17, 39,379.80 and 19,117.09

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Solution

The fourth proportional to 28,532.17, 39,379.80 and 19,117.09 is: 26,385.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.17 : 39,379.80 = 19,117.09 : x
  2. Step 2: Convert to fraction form
    28,532.17/39,379.80 = 19,117.09/x
  3. Step 3: Cross multiply
    28,532.17x = 39,379.80 × 19,117.09
  4. Step 4: Simplify right side
    28,532.17x = 752,827,180.78
  5. Step 5: Solve for x
    x = 752,827,180.78/28,532.17
  6. Step 6: Final answer
    x = 26,385.21

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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.