Home / 27,726.68-38,265-15,790.52

Finding the Fourth Proportional to 27,726.68, 38,265 and 15,790.52

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Solution

The fourth proportional to 27,726.68, 38,265 and 15,790.52 is: 21,792.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,726.68 : 38,265 = 15,790.52 : x
  2. Step 2: Convert to fraction form
    27,726.68/38,265 = 15,790.52/x
  3. Step 3: Cross multiply
    27,726.68x = 38,265 × 15,790.52
  4. Step 4: Simplify right side
    27,726.68x = 604,224,247.80
  5. Step 5: Solve for x
    x = 604,224,247.80/27,726.68
  6. Step 6: Final answer
    x = 21,792.16

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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.