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Finding the Fourth Proportional to 20,482.04, 30,727.08 and 9,389

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Solution

The fourth proportional to 20,482.04, 30,727.08 and 9,389 is: 14,085.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.04 : 30,727.08 = 9,389 : x
  2. Step 2: Convert to fraction form
    20,482.04/30,727.08 = 9,389/x
  3. Step 3: Cross multiply
    20,482.04x = 30,727.08 × 9,389
  4. Step 4: Simplify right side
    20,482.04x = 288,496,554.12
  5. Step 5: Solve for x
    x = 288,496,554.12/20,482.04
  6. Step 6: Final answer
    x = 14,085.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.