Home / 27,378.07-37,782.29-15,439.07

Finding the Fourth Proportional to 27,378.07, 37,782.29 and 15,439.07

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Solution

The fourth proportional to 27,378.07, 37,782.29 and 15,439.07 is: 21,306.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.07 : 37,782.29 = 15,439.07 : x
  2. Step 2: Convert to fraction form
    27,378.07/37,782.29 = 15,439.07/x
  3. Step 3: Cross multiply
    27,378.07x = 37,782.29 × 15,439.07
  4. Step 4: Simplify right side
    27,378.07x = 583,323,553.12
  5. Step 5: Solve for x
    x = 583,323,553.12/27,378.07
  6. Step 6: Final answer
    x = 21,306.24

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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.