Home / 22,547.65-31,115.79-12,476.51

Finding the Fourth Proportional to 22,547.65, 31,115.79 and 12,476.51

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Solution

The fourth proportional to 22,547.65, 31,115.79 and 12,476.51 is: 17,217.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,547.65 : 31,115.79 = 12,476.51 : x
  2. Step 2: Convert to fraction form
    22,547.65/31,115.79 = 12,476.51/x
  3. Step 3: Cross multiply
    22,547.65x = 31,115.79 × 12,476.51
  4. Step 4: Simplify right side
    22,547.65x = 388,216,542.88
  5. Step 5: Solve for x
    x = 388,216,542.88/22,547.65
  6. Step 6: Final answer
    x = 17,217.61

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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.