Home / 27,479.22-37,919.29-15,378.11

Finding the Fourth Proportional to 27,479.22, 37,919.29 and 15,378.11

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Solution

The fourth proportional to 27,479.22, 37,919.29 and 15,378.11 is: 21,220.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,479.22 : 37,919.29 = 15,378.11 : x
  2. Step 2: Convert to fraction form
    27,479.22/37,919.29 = 15,378.11/x
  3. Step 3: Cross multiply
    27,479.22x = 37,919.29 × 15,378.11
  4. Step 4: Simplify right side
    27,479.22x = 583,127,012.74
  5. Step 5: Solve for x
    x = 583,127,012.74/27,479.22
  6. Step 6: Final answer
    x = 21,220.65

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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.