Home / 23,312.40-34,928.10-21,028.20

Finding the Fourth Proportional to 23,312.40, 34,928.10 and 21,028.20

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Solution

The fourth proportional to 23,312.40, 34,928.10 and 21,028.20 is: 31,505.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,312.40 : 34,928.10 = 21,028.20 : x
  2. Step 2: Convert to fraction form
    23,312.40/34,928.10 = 21,028.20/x
  3. Step 3: Cross multiply
    23,312.40x = 34,928.10 × 21,028.20
  4. Step 4: Simplify right side
    23,312.40x = 734,475,072.42
  5. Step 5: Solve for x
    x = 734,475,072.42/23,312.40
  6. Step 6: Final answer
    x = 31,505.77

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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.