Home / 22,616.07-31,210.29-12,543.81

Finding the Fourth Proportional to 22,616.07, 31,210.29 and 12,543.81

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Solution

The fourth proportional to 22,616.07, 31,210.29 and 12,543.81 is: 17,310.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,616.07 : 31,210.29 = 12,543.81 : x
  2. Step 2: Convert to fraction form
    22,616.07/31,210.29 = 12,543.81/x
  3. Step 3: Cross multiply
    22,616.07x = 31,210.29 × 12,543.81
  4. Step 4: Simplify right side
    22,616.07x = 391,495,947.80
  5. Step 5: Solve for x
    x = 391,495,947.80/22,616.07
  6. Step 6: Final answer
    x = 17,310.52

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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.