Home / 15,209.40-20,975.85-14,323.68

Finding the Fourth Proportional to 15,209.40, 20,975.85 and 14,323.68

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Solution

The fourth proportional to 15,209.40, 20,975.85 and 14,323.68 is: 19,754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,209.40 : 20,975.85 = 14,323.68 : x
  2. Step 2: Convert to fraction form
    15,209.40/20,975.85 = 14,323.68/x
  3. Step 3: Cross multiply
    15,209.40x = 20,975.85 × 14,323.68
  4. Step 4: Simplify right side
    15,209.40x = 300,451,363.13
  5. Step 5: Solve for x
    x = 300,451,363.13/15,209.40
  6. Step 6: Final answer
    x = 19,754.32

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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.