Home / 28,173.56-38,885.28-19,245.74

Finding the Fourth Proportional to 28,173.56, 38,885.28 and 19,245.74

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Solution

The fourth proportional to 28,173.56, 38,885.28 and 19,245.74 is: 26,563.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.56 : 38,885.28 = 19,245.74 : x
  2. Step 2: Convert to fraction form
    28,173.56/38,885.28 = 19,245.74/x
  3. Step 3: Cross multiply
    28,173.56x = 38,885.28 × 19,245.74
  4. Step 4: Simplify right side
    28,173.56x = 748,375,988.71
  5. Step 5: Solve for x
    x = 748,375,988.71/28,173.56
  6. Step 6: Final answer
    x = 26,563.06

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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.