Home / 19,923.95-27,491.05-15,142.62

Finding the Fourth Proportional to 19,923.95, 27,491.05 and 15,142.62

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Solution

The fourth proportional to 19,923.95, 27,491.05 and 15,142.62 is: 20,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,923.95 : 27,491.05 = 15,142.62 : x
  2. Step 2: Convert to fraction form
    19,923.95/27,491.05 = 15,142.62/x
  3. Step 3: Cross multiply
    19,923.95x = 27,491.05 × 15,142.62
  4. Step 4: Simplify right side
    19,923.95x = 416,286,483.07
  5. Step 5: Solve for x
    x = 416,286,483.07/19,923.95
  6. Step 6: Final answer
    x = 20,893.77

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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.