Home / 22,159.17-30,579.80-12,087.77

Finding the Fourth Proportional to 22,159.17, 30,579.80 and 12,087.77

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Solution

The fourth proportional to 22,159.17, 30,579.80 and 12,087.77 is: 16,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.17 : 30,579.80 = 12,087.77 : x
  2. Step 2: Convert to fraction form
    22,159.17/30,579.80 = 12,087.77/x
  3. Step 3: Cross multiply
    22,159.17x = 30,579.80 × 12,087.77
  4. Step 4: Simplify right side
    22,159.17x = 369,641,375.71
  5. Step 5: Solve for x
    x = 369,641,375.71/22,159.17
  6. Step 6: Final answer
    x = 16,681.19

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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.