Home / 19,125.62-28,688.22-13,480.10

Finding the Fourth Proportional to 19,125.62, 28,688.22 and 13,480.10

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Solution

The fourth proportional to 19,125.62, 28,688.22 and 13,480.10 is: 20,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.62 : 28,688.22 = 13,480.10 : x
  2. Step 2: Convert to fraction form
    19,125.62/28,688.22 = 13,480.10/x
  3. Step 3: Cross multiply
    19,125.62x = 28,688.22 × 13,480.10
  4. Step 4: Simplify right side
    19,125.62x = 386,720,074.42
  5. Step 5: Solve for x
    x = 386,720,074.42/19,125.62
  6. Step 6: Final answer
    x = 20,220.00

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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.