Home / 28,388.90-39,176.69-16,459.16

Finding the Fourth Proportional to 28,388.90, 39,176.69 and 16,459.16

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Solution

The fourth proportional to 28,388.90, 39,176.69 and 16,459.16 is: 22,713.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,388.90 : 39,176.69 = 16,459.16 : x
  2. Step 2: Convert to fraction form
    28,388.90/39,176.69 = 16,459.16/x
  3. Step 3: Cross multiply
    28,388.90x = 39,176.69 × 16,459.16
  4. Step 4: Simplify right side
    28,388.90x = 644,815,408.98
  5. Step 5: Solve for x
    x = 644,815,408.98/28,388.90
  6. Step 6: Final answer
    x = 22,713.65

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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.