Home / 36,988.85-51,046.50-21,890.18

Finding the Fourth Proportional to 36,988.85, 51,046.50 and 21,890.18

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Solution

The fourth proportional to 36,988.85, 51,046.50 and 21,890.18 is: 30,209.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,988.85 : 51,046.50 = 21,890.18 : x
  2. Step 2: Convert to fraction form
    36,988.85/51,046.50 = 21,890.18/x
  3. Step 3: Cross multiply
    36,988.85x = 51,046.50 × 21,890.18
  4. Step 4: Simplify right side
    36,988.85x = 1,117,417,283.07
  5. Step 5: Solve for x
    x = 1,117,417,283.07/36,988.85
  6. Step 6: Final answer
    x = 30,209.57

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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.