Home / 28,507.19-39,336.52-15,758.66

Finding the Fourth Proportional to 28,507.19, 39,336.52 and 15,758.66

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Solution

The fourth proportional to 28,507.19, 39,336.52 and 15,758.66 is: 21,745.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,507.19 : 39,336.52 = 15,758.66 : x
  2. Step 2: Convert to fraction form
    28,507.19/39,336.52 = 15,758.66/x
  3. Step 3: Cross multiply
    28,507.19x = 39,336.52 × 15,758.66
  4. Step 4: Simplify right side
    28,507.19x = 619,890,568.79
  5. Step 5: Solve for x
    x = 619,890,568.79/28,507.19
  6. Step 6: Final answer
    x = 21,745.06

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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.