Home / 28,506.69-39,335.82-15,758.16

Finding the Fourth Proportional to 28,506.69, 39,335.82 and 15,758.16

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Solution

The fourth proportional to 28,506.69, 39,335.82 and 15,758.16 is: 21,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.69 : 39,335.82 = 15,758.16 : x
  2. Step 2: Convert to fraction form
    28,506.69/39,335.82 = 15,758.16/x
  3. Step 3: Cross multiply
    28,506.69x = 39,335.82 × 15,758.16
  4. Step 4: Simplify right side
    28,506.69x = 619,860,145.29
  5. Step 5: Solve for x
    x = 619,860,145.29/28,506.69
  6. Step 6: Final answer
    x = 21,744.37

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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.