Home / 22,618.81-31,211.85-12,547.23

Finding the Fourth Proportional to 22,618.81, 31,211.85 and 12,547.23

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Solution

The fourth proportional to 22,618.81, 31,211.85 and 12,547.23 is: 17,314.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,618.81 : 31,211.85 = 12,547.23 : x
  2. Step 2: Convert to fraction form
    22,618.81/31,211.85 = 12,547.23/x
  3. Step 3: Cross multiply
    22,618.81x = 31,211.85 × 12,547.23
  4. Step 4: Simplify right side
    22,618.81x = 391,622,260.68
  5. Step 5: Solve for x
    x = 391,622,260.68/22,618.81
  6. Step 6: Final answer
    x = 17,314.01

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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.