Home / 22,615.35-31,211.10-12,547.03

Finding the Fourth Proportional to 22,615.35, 31,211.10 and 12,547.03

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Solution

The fourth proportional to 22,615.35, 31,211.10 and 12,547.03 is: 17,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.35 : 31,211.10 = 12,547.03 : x
  2. Step 2: Convert to fraction form
    22,615.35/31,211.10 = 12,547.03/x
  3. Step 3: Cross multiply
    22,615.35x = 31,211.10 × 12,547.03
  4. Step 4: Simplify right side
    22,615.35x = 391,606,608.03
  5. Step 5: Solve for x
    x = 391,606,608.03/22,615.35
  6. Step 6: Final answer
    x = 17,315.96

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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.