Home / 28,079.54-38,748.75-15,504.02

Finding the Fourth Proportional to 28,079.54, 38,748.75 and 15,504.02

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Solution

The fourth proportional to 28,079.54, 38,748.75 and 15,504.02 is: 21,394.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079.54 : 38,748.75 = 15,504.02 : x
  2. Step 2: Convert to fraction form
    28,079.54/38,748.75 = 15,504.02/x
  3. Step 3: Cross multiply
    28,079.54x = 38,748.75 × 15,504.02
  4. Step 4: Simplify right side
    28,079.54x = 600,761,394.98
  5. Step 5: Solve for x
    x = 600,761,394.98/28,079.54
  6. Step 6: Final answer
    x = 21,394.99

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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.