Home / 27,378.03-37,782.23-15,439.04

Finding the Fourth Proportional to 27,378.03, 37,782.23 and 15,439.04

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Solution

The fourth proportional to 27,378.03, 37,782.23 and 15,439.04 is: 21,306.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.03 : 37,782.23 = 15,439.04 : x
  2. Step 2: Convert to fraction form
    27,378.03/37,782.23 = 15,439.04/x
  3. Step 3: Cross multiply
    27,378.03x = 37,782.23 × 15,439.04
  4. Step 4: Simplify right side
    27,378.03x = 583,321,094.15
  5. Step 5: Solve for x
    x = 583,321,094.15/27,378.03
  6. Step 6: Final answer
    x = 21,306.17

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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.