Home / 27,943.20-38,561.88-15,368

Finding the Fourth Proportional to 27,943.20, 38,561.88 and 15,368

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Solution

The fourth proportional to 27,943.20, 38,561.88 and 15,368 is: 21,207.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,943.20 : 38,561.88 = 15,368 : x
  2. Step 2: Convert to fraction form
    27,943.20/38,561.88 = 15,368/x
  3. Step 3: Cross multiply
    27,943.20x = 38,561.88 × 15,368
  4. Step 4: Simplify right side
    27,943.20x = 592,618,971.84
  5. Step 5: Solve for x
    x = 592,618,971.84/27,943.20
  6. Step 6: Final answer
    x = 21,207.99

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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.