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Finding the Fourth Proportional to 40,808.40, 61,223.40 and 14,510.40

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Solution

The fourth proportional to 40,808.40, 61,223.40 and 14,510.40 is: 21,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,808.40 : 61,223.40 = 14,510.40 : x
  2. Step 2: Convert to fraction form
    40,808.40/61,223.40 = 14,510.40/x
  3. Step 3: Cross multiply
    40,808.40x = 61,223.40 × 14,510.40
  4. Step 4: Simplify right side
    40,808.40x = 888,376,023.36
  5. Step 5: Solve for x
    x = 888,376,023.36/40,808.40
  6. Step 6: Final answer
    x = 21,769.44

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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.