Home / 23,105.40-31,894.07-17,990.79

Finding the Fourth Proportional to 23,105.40, 31,894.07 and 17,990.79

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Solution

The fourth proportional to 23,105.40, 31,894.07 and 17,990.79 is: 24,834.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,105.40 : 31,894.07 = 17,990.79 : x
  2. Step 2: Convert to fraction form
    23,105.40/31,894.07 = 17,990.79/x
  3. Step 3: Cross multiply
    23,105.40x = 31,894.07 × 17,990.79
  4. Step 4: Simplify right side
    23,105.40x = 573,799,407.26
  5. Step 5: Solve for x
    x = 573,799,407.26/23,105.40
  6. Step 6: Final answer
    x = 24,834.00

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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.