Home / 27,479.86-37,921.06-15,543.39

Finding the Fourth Proportional to 27,479.86, 37,921.06 and 15,543.39

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Solution

The fourth proportional to 27,479.86, 37,921.06 and 15,543.39 is: 21,449.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,479.86 : 37,921.06 = 15,543.39 : x
  2. Step 2: Convert to fraction form
    27,479.86/37,921.06 = 15,543.39/x
  3. Step 3: Cross multiply
    27,479.86x = 37,921.06 × 15,543.39
  4. Step 4: Simplify right side
    27,479.86x = 589,421,986.43
  5. Step 5: Solve for x
    x = 589,421,986.43/27,479.86
  6. Step 6: Final answer
    x = 21,449.24

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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.