Home / 20,547.82-28,346.96-12,045.62

Finding the Fourth Proportional to 20,547.82, 28,346.96 and 12,045.62

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Solution

The fourth proportional to 20,547.82, 28,346.96 and 12,045.62 is: 16,617.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.82 : 28,346.96 = 12,045.62 : x
  2. Step 2: Convert to fraction form
    20,547.82/28,346.96 = 12,045.62/x
  3. Step 3: Cross multiply
    20,547.82x = 28,346.96 × 12,045.62
  4. Step 4: Simplify right side
    20,547.82x = 341,456,648.09
  5. Step 5: Solve for x
    x = 341,456,648.09/20,547.82
  6. Step 6: Final answer
    x = 16,617.66

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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.