Home / 19,928.28-29,871.91-8,840.19

Finding the Fourth Proportional to 19,928.28, 29,871.91 and 8,840.19

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Solution

The fourth proportional to 19,928.28, 29,871.91 and 8,840.19 is: 13,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.28 : 29,871.91 = 8,840.19 : x
  2. Step 2: Convert to fraction form
    19,928.28/29,871.91 = 8,840.19/x
  3. Step 3: Cross multiply
    19,928.28x = 29,871.91 × 8,840.19
  4. Step 4: Simplify right side
    19,928.28x = 264,073,307.48
  5. Step 5: Solve for x
    x = 264,073,307.48/19,928.28
  6. Step 6: Final answer
    x = 13,251.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.