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Finding the Fourth Proportional to 23,935.40, 35,904.70 and 8,140.20

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Solution

The fourth proportional to 23,935.40, 35,904.70 and 8,140.20 is: 12,210.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,935.40 : 35,904.70 = 8,140.20 : x
  2. Step 2: Convert to fraction form
    23,935.40/35,904.70 = 8,140.20/x
  3. Step 3: Cross multiply
    23,935.40x = 35,904.70 × 8,140.20
  4. Step 4: Simplify right side
    23,935.40x = 292,271,438.94
  5. Step 5: Solve for x
    x = 292,271,438.94/23,935.40
  6. Step 6: Final answer
    x = 12,210.84

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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.