Home / 27,646.88-38,152.50-15,071.72

Finding the Fourth Proportional to 27,646.88, 38,152.50 and 15,071.72

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Solution

The fourth proportional to 27,646.88, 38,152.50 and 15,071.72 is: 20,798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,646.88 : 38,152.50 = 15,071.72 : x
  2. Step 2: Convert to fraction form
    27,646.88/38,152.50 = 15,071.72/x
  3. Step 3: Cross multiply
    27,646.88x = 38,152.50 × 15,071.72
  4. Step 4: Simplify right side
    27,646.88x = 575,023,797.30
  5. Step 5: Solve for x
    x = 575,023,797.30/27,646.88
  6. Step 6: Final answer
    x = 20,798.87

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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.