Home / 28,034.16-38,687.43-15,459.36

Finding the Fourth Proportional to 28,034.16, 38,687.43 and 15,459.36

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Solution

The fourth proportional to 28,034.16, 38,687.43 and 15,459.36 is: 21,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.16 : 38,687.43 = 15,459.36 : x
  2. Step 2: Convert to fraction form
    28,034.16/38,687.43 = 15,459.36/x
  3. Step 3: Cross multiply
    28,034.16x = 38,687.43 × 15,459.36
  4. Step 4: Simplify right side
    28,034.16x = 598,082,907.84
  5. Step 5: Solve for x
    x = 598,082,907.84/28,034.16
  6. Step 6: Final answer
    x = 21,334.08

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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.