Home / 28,073.28-38,739.96-15,497.76

Finding the Fourth Proportional to 28,073.28, 38,739.96 and 15,497.76

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Solution

The fourth proportional to 28,073.28, 38,739.96 and 15,497.76 is: 21,386.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.28 : 38,739.96 = 15,497.76 : x
  2. Step 2: Convert to fraction form
    28,073.28/38,739.96 = 15,497.76/x
  3. Step 3: Cross multiply
    28,073.28x = 38,739.96 × 15,497.76
  4. Step 4: Simplify right side
    28,073.28x = 600,382,602.49
  5. Step 5: Solve for x
    x = 600,382,602.49/28,073.28
  6. Step 6: Final answer
    x = 21,386.26

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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.