Home / 25,859.18-38,821.61-21,988.19

Finding the Fourth Proportional to 25,859.18, 38,821.61 and 21,988.19

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Solution

The fourth proportional to 25,859.18, 38,821.61 and 21,988.19 is: 33,010.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,859.18 : 38,821.61 = 21,988.19 : x
  2. Step 2: Convert to fraction form
    25,859.18/38,821.61 = 21,988.19/x
  3. Step 3: Cross multiply
    25,859.18x = 38,821.61 × 21,988.19
  4. Step 4: Simplify right side
    25,859.18x = 853,617,088.81
  5. Step 5: Solve for x
    x = 853,617,088.81/25,859.18
  6. Step 6: Final answer
    x = 33,010.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.