Home / 22,618.48-31,212.66-12,547.06

Finding the Fourth Proportional to 22,618.48, 31,212.66 and 12,547.06

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Solution

The fourth proportional to 22,618.48, 31,212.66 and 12,547.06 is: 17,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,618.48 : 31,212.66 = 12,547.06 : x
  2. Step 2: Convert to fraction form
    22,618.48/31,212.66 = 12,547.06/x
  3. Step 3: Cross multiply
    22,618.48x = 31,212.66 × 12,547.06
  4. Step 4: Simplify right side
    22,618.48x = 391,627,117.78
  5. Step 5: Solve for x
    x = 391,627,117.78/22,618.48
  6. Step 6: Final answer
    x = 17,314.48

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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.