Home / 28,342.32-39,113.12-15,595.82

Finding the Fourth Proportional to 28,342.32, 39,113.12 and 15,595.82

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Solution

The fourth proportional to 28,342.32, 39,113.12 and 15,595.82 is: 21,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.32 : 39,113.12 = 15,595.82 : x
  2. Step 2: Convert to fraction form
    28,342.32/39,113.12 = 15,595.82/x
  3. Step 3: Cross multiply
    28,342.32x = 39,113.12 × 15,595.82
  4. Step 4: Simplify right side
    28,342.32x = 610,001,179.16
  5. Step 5: Solve for x
    x = 610,001,179.16/28,342.32
  6. Step 6: Final answer
    x = 21,522.63

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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.