Home / 28,780.18-43,217.17-17,756.93

Finding the Fourth Proportional to 28,780.18, 43,217.17 and 17,756.93

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Solution

The fourth proportional to 28,780.18, 43,217.17 and 17,756.93 is: 26,664.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.18 : 43,217.17 = 17,756.93 : x
  2. Step 2: Convert to fraction form
    28,780.18/43,217.17 = 17,756.93/x
  3. Step 3: Cross multiply
    28,780.18x = 43,217.17 × 17,756.93
  4. Step 4: Simplify right side
    28,780.18x = 767,404,326.14
  5. Step 5: Solve for x
    x = 767,404,326.14/28,780.18
  6. Step 6: Final answer
    x = 26,664.34

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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.