Home / 27,772.08-38,311.12-18,816.52

Finding the Fourth Proportional to 27,772.08, 38,311.12 and 18,816.52

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Solution

The fourth proportional to 27,772.08, 38,311.12 and 18,816.52 is: 25,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772.08 : 38,311.12 = 18,816.52 : x
  2. Step 2: Convert to fraction form
    27,772.08/38,311.12 = 18,816.52/x
  3. Step 3: Cross multiply
    27,772.08x = 38,311.12 × 18,816.52
  4. Step 4: Simplify right side
    27,772.08x = 720,881,955.70
  5. Step 5: Solve for x
    x = 720,881,955.70/27,772.08
  6. Step 6: Final answer
    x = 25,957.07

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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.