Home / 22,615.90-31,210.13-12,544.99

Finding the Fourth Proportional to 22,615.90, 31,210.13 and 12,544.99

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Solution

The fourth proportional to 22,615.90, 31,210.13 and 12,544.99 is: 17,312.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.90 : 31,210.13 = 12,544.99 : x
  2. Step 2: Convert to fraction form
    22,615.90/31,210.13 = 12,544.99/x
  3. Step 3: Cross multiply
    22,615.90x = 31,210.13 × 12,544.99
  4. Step 4: Simplify right side
    22,615.90x = 391,530,827.08
  5. Step 5: Solve for x
    x = 391,530,827.08/22,615.90
  6. Step 6: Final answer
    x = 17,312.19

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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.