Home / 19,981.08-27,574.79-11,485.96

Finding the Fourth Proportional to 19,981.08, 27,574.79 and 11,485.96

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Solution

The fourth proportional to 19,981.08, 27,574.79 and 11,485.96 is: 15,851.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.08 : 27,574.79 = 11,485.96 : x
  2. Step 2: Convert to fraction form
    19,981.08/27,574.79 = 11,485.96/x
  3. Step 3: Cross multiply
    19,981.08x = 27,574.79 × 11,485.96
  4. Step 4: Simplify right side
    19,981.08x = 316,722,934.95
  5. Step 5: Solve for x
    x = 316,722,934.95/19,981.08
  6. Step 6: Final answer
    x = 15,851.14

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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.