Home / 28,681.92-43,006.10-11,131.26

Finding the Fourth Proportional to 28,681.92, 43,006.10 and 11,131.26

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Solution

The fourth proportional to 28,681.92, 43,006.10 and 11,131.26 is: 16,690.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.92 : 43,006.10 = 11,131.26 : x
  2. Step 2: Convert to fraction form
    28,681.92/43,006.10 = 11,131.26/x
  3. Step 3: Cross multiply
    28,681.92x = 43,006.10 × 11,131.26
  4. Step 4: Simplify right side
    28,681.92x = 478,712,080.69
  5. Step 5: Solve for x
    x = 478,712,080.69/28,681.92
  6. Step 6: Final answer
    x = 16,690.38

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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.