Home / 28,335.15-39,102.59-15,589.16

Finding the Fourth Proportional to 28,335.15, 39,102.59 and 15,589.16

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Solution

The fourth proportional to 28,335.15, 39,102.59 and 15,589.16 is: 21,513.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.15 : 39,102.59 = 15,589.16 : x
  2. Step 2: Convert to fraction form
    28,335.15/39,102.59 = 15,589.16/x
  3. Step 3: Cross multiply
    28,335.15x = 39,102.59 × 15,589.16
  4. Step 4: Simplify right side
    28,335.15x = 609,576,531.92
  5. Step 5: Solve for x
    x = 609,576,531.92/28,335.15
  6. Step 6: Final answer
    x = 21,513.09

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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.