Home / 27,255.86-37,611.36-15,319.02

Finding the Fourth Proportional to 27,255.86, 37,611.36 and 15,319.02

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Solution

The fourth proportional to 27,255.86, 37,611.36 and 15,319.02 is: 21,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,255.86 : 37,611.36 = 15,319.02 : x
  2. Step 2: Convert to fraction form
    27,255.86/37,611.36 = 15,319.02/x
  3. Step 3: Cross multiply
    27,255.86x = 37,611.36 × 15,319.02
  4. Step 4: Simplify right side
    27,255.86x = 576,169,176.07
  5. Step 5: Solve for x
    x = 576,169,176.07/27,255.86
  6. Step 6: Final answer
    x = 21,139.28

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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.