Home / 27,478.98-37,921-15,542.07

Finding the Fourth Proportional to 27,478.98, 37,921 and 15,542.07

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Solution

The fourth proportional to 27,478.98, 37,921 and 15,542.07 is: 21,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,478.98 : 37,921 = 15,542.07 : x
  2. Step 2: Convert to fraction form
    27,478.98/37,921 = 15,542.07/x
  3. Step 3: Cross multiply
    27,478.98x = 37,921 × 15,542.07
  4. Step 4: Simplify right side
    27,478.98x = 589,370,836.47
  5. Step 5: Solve for x
    x = 589,370,836.47/27,478.98
  6. Step 6: Final answer
    x = 21,448.06

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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.