Home / 22,149.09-30,565.51-12,077.50

Finding the Fourth Proportional to 22,149.09, 30,565.51 and 12,077.50

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Solution

The fourth proportional to 22,149.09, 30,565.51 and 12,077.50 is: 16,666.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,149.09 : 30,565.51 = 12,077.50 : x
  2. Step 2: Convert to fraction form
    22,149.09/30,565.51 = 12,077.50/x
  3. Step 3: Cross multiply
    22,149.09x = 30,565.51 × 12,077.50
  4. Step 4: Simplify right side
    22,149.09x = 369,154,947.03
  5. Step 5: Solve for x
    x = 369,154,947.03/22,149.09
  6. Step 6: Final answer
    x = 16,666.82

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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.