Home / 28,062.30-38,725.44-15,315.06

Finding the Fourth Proportional to 28,062.30, 38,725.44 and 15,315.06

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Solution

The fourth proportional to 28,062.30, 38,725.44 and 15,315.06 is: 21,134.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.30 : 38,725.44 = 15,315.06 : x
  2. Step 2: Convert to fraction form
    28,062.30/38,725.44 = 15,315.06/x
  3. Step 3: Cross multiply
    28,062.30x = 38,725.44 × 15,315.06
  4. Step 4: Simplify right side
    28,062.30x = 593,082,437.13
  5. Step 5: Solve for x
    x = 593,082,437.13/28,062.30
  6. Step 6: Final answer
    x = 21,134.49

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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.