Home / 27,478.02-37,921.71-15,542.58

Finding the Fourth Proportional to 27,478.02, 37,921.71 and 15,542.58

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Solution

The fourth proportional to 27,478.02, 37,921.71 and 15,542.58 is: 21,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,478.02 : 37,921.71 = 15,542.58 : x
  2. Step 2: Convert to fraction form
    27,478.02/37,921.71 = 15,542.58/x
  3. Step 3: Cross multiply
    27,478.02x = 37,921.71 × 15,542.58
  4. Step 4: Simplify right side
    27,478.02x = 589,401,211.41
  5. Step 5: Solve for x
    x = 589,401,211.41/27,478.02
  6. Step 6: Final answer
    x = 21,449.92

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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.