Home / 21,840.30-32,748.30-9,358.20

Finding the Fourth Proportional to 21,840.30, 32,748.30 and 9,358.20

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Solution

The fourth proportional to 21,840.30, 32,748.30 and 9,358.20 is: 14,032.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.30 : 32,748.30 = 9,358.20 : x
  2. Step 2: Convert to fraction form
    21,840.30/32,748.30 = 9,358.20/x
  3. Step 3: Cross multiply
    21,840.30x = 32,748.30 × 9,358.20
  4. Step 4: Simplify right side
    21,840.30x = 306,465,141.06
  5. Step 5: Solve for x
    x = 306,465,141.06/21,840.30
  6. Step 6: Final answer
    x = 14,032.09

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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.