Home / 20,547.88-28,355.67-13,473.84

Finding the Fourth Proportional to 20,547.88, 28,355.67 and 13,473.84

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Solution

The fourth proportional to 20,547.88, 28,355.67 and 13,473.84 is: 18,593.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.88 : 28,355.67 = 13,473.84 : x
  2. Step 2: Convert to fraction form
    20,547.88/28,355.67 = 13,473.84/x
  3. Step 3: Cross multiply
    20,547.88x = 28,355.67 × 13,473.84
  4. Step 4: Simplify right side
    20,547.88x = 382,059,867.01
  5. Step 5: Solve for x
    x = 382,059,867.01/20,547.88
  6. Step 6: Final answer
    x = 18,593.64

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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.