Home / 27,930.56-38,561.16-19,429.52

Finding the Fourth Proportional to 27,930.56, 38,561.16 and 19,429.52

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Solution

The fourth proportional to 27,930.56, 38,561.16 and 19,429.52 is: 26,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,930.56 : 38,561.16 = 19,429.52 : x
  2. Step 2: Convert to fraction form
    27,930.56/38,561.16 = 19,429.52/x
  3. Step 3: Cross multiply
    27,930.56x = 38,561.16 × 19,429.52
  4. Step 4: Simplify right side
    27,930.56x = 749,224,829.44
  5. Step 5: Solve for x
    x = 749,224,829.44/27,930.56
  6. Step 6: Final answer
    x = 26,824.55

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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.