Home / 19,933.50-27,509.49-10,981.02

Finding the Fourth Proportional to 19,933.50, 27,509.49 and 10,981.02

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Solution

The fourth proportional to 19,933.50, 27,509.49 and 10,981.02 is: 15,154.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,933.50 : 27,509.49 = 10,981.02 : x
  2. Step 2: Convert to fraction form
    19,933.50/27,509.49 = 10,981.02/x
  3. Step 3: Cross multiply
    19,933.50x = 27,509.49 × 10,981.02
  4. Step 4: Simplify right side
    19,933.50x = 302,082,259.88
  5. Step 5: Solve for x
    x = 302,082,259.88/19,933.50
  6. Step 6: Final answer
    x = 15,154.50

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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.