Home / 27,620.64-38,116.71-15,045.39

Finding the Fourth Proportional to 27,620.64, 38,116.71 and 15,045.39

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Solution

The fourth proportional to 27,620.64, 38,116.71 and 15,045.39 is: 20,762.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.64 : 38,116.71 = 15,045.39 : x
  2. Step 2: Convert to fraction form
    27,620.64/38,116.71 = 15,045.39/x
  3. Step 3: Cross multiply
    27,620.64x = 38,116.71 × 15,045.39
  4. Step 4: Simplify right side
    27,620.64x = 573,480,767.47
  5. Step 5: Solve for x
    x = 573,480,767.47/27,620.64
  6. Step 6: Final answer
    x = 20,762.76

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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.