Home / 27,897.21-38,479.04-17,821.17

Finding the Fourth Proportional to 27,897.21, 38,479.04 and 17,821.17

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Solution

The fourth proportional to 27,897.21, 38,479.04 and 17,821.17 is: 24,581.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,897.21 : 38,479.04 = 17,821.17 : x
  2. Step 2: Convert to fraction form
    27,897.21/38,479.04 = 17,821.17/x
  3. Step 3: Cross multiply
    27,897.21x = 38,479.04 × 17,821.17
  4. Step 4: Simplify right side
    27,897.21x = 685,741,424.17
  5. Step 5: Solve for x
    x = 685,741,424.17/27,897.21
  6. Step 6: Final answer
    x = 24,581.00

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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.