Home / 19,883.42-27,439.11-10,931.50

Finding the Fourth Proportional to 19,883.42, 27,439.11 and 10,931.50

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Solution

The fourth proportional to 19,883.42, 27,439.11 and 10,931.50 is: 15,085.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.42 : 27,439.11 = 10,931.50 : x
  2. Step 2: Convert to fraction form
    19,883.42/27,439.11 = 10,931.50/x
  3. Step 3: Cross multiply
    19,883.42x = 27,439.11 × 10,931.50
  4. Step 4: Simplify right side
    19,883.42x = 299,950,630.97
  5. Step 5: Solve for x
    x = 299,950,630.97/19,883.42
  6. Step 6: Final answer
    x = 15,085.46

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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.