Home / 19,561.68-27,007.55-15,077.12

Finding the Fourth Proportional to 19,561.68, 27,007.55 and 15,077.12

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Solution

The fourth proportional to 19,561.68, 27,007.55 and 15,077.12 is: 20,816.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.68 : 27,007.55 = 15,077.12 : x
  2. Step 2: Convert to fraction form
    19,561.68/27,007.55 = 15,077.12/x
  3. Step 3: Cross multiply
    19,561.68x = 27,007.55 × 15,077.12
  4. Step 4: Simplify right side
    19,561.68x = 407,195,861.83
  5. Step 5: Solve for x
    x = 407,195,861.83/19,561.68
  6. Step 6: Final answer
    x = 20,816.00

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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.