Home / 22,616.76-31,210.90-12,545.22

Finding the Fourth Proportional to 22,616.76, 31,210.90 and 12,545.22

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Solution

The fourth proportional to 22,616.76, 31,210.90 and 12,545.22 is: 17,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,616.76 : 31,210.90 = 12,545.22 : x
  2. Step 2: Convert to fraction form
    22,616.76/31,210.90 = 12,545.22/x
  3. Step 3: Cross multiply
    22,616.76x = 31,210.90 × 12,545.22
  4. Step 4: Simplify right side
    22,616.76x = 391,547,450.84
  5. Step 5: Solve for x
    x = 391,547,450.84/22,616.76
  6. Step 6: Final answer
    x = 17,312.27

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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.