Home / 19,884.18-27,438.57-10,931.46

Finding the Fourth Proportional to 19,884.18, 27,438.57 and 10,931.46

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Solution

The fourth proportional to 19,884.18, 27,438.57 and 10,931.46 is: 15,084.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.18 : 27,438.57 = 10,931.46 : x
  2. Step 2: Convert to fraction form
    19,884.18/27,438.57 = 10,931.46/x
  3. Step 3: Cross multiply
    19,884.18x = 27,438.57 × 10,931.46
  4. Step 4: Simplify right side
    19,884.18x = 299,943,630.41
  5. Step 5: Solve for x
    x = 299,943,630.41/19,884.18
  6. Step 6: Final answer
    x = 15,084.54

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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.