Home / 27,865.95-38,442.90-15,924.93

Finding the Fourth Proportional to 27,865.95, 38,442.90 and 15,924.93

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Solution

The fourth proportional to 27,865.95, 38,442.90 and 15,924.93 is: 21,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.95 : 38,442.90 = 15,924.93 : x
  2. Step 2: Convert to fraction form
    27,865.95/38,442.90 = 15,924.93/x
  3. Step 3: Cross multiply
    27,865.95x = 38,442.90 × 15,924.93
  4. Step 4: Simplify right side
    27,865.95x = 612,200,491.50
  5. Step 5: Solve for x
    x = 612,200,491.50/27,865.95
  6. Step 6: Final answer
    x = 21,969.48

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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.