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Finding the Fourth Proportional to 15,903.80, 23,855.70 and 13,133.60

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Solution

The fourth proportional to 15,903.80, 23,855.70 and 13,133.60 is: 19,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,903.80 : 23,855.70 = 13,133.60 : x
  2. Step 2: Convert to fraction form
    15,903.80/23,855.70 = 13,133.60/x
  3. Step 3: Cross multiply
    15,903.80x = 23,855.70 × 13,133.60
  4. Step 4: Simplify right side
    15,903.80x = 313,311,221.52
  5. Step 5: Solve for x
    x = 313,311,221.52/15,903.80
  6. Step 6: Final answer
    x = 19,700.40

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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.