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Finding the Fourth Proportional to 19,995.60, 30,002.04 and 10,750.80

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Solution

The fourth proportional to 19,995.60, 30,002.04 and 10,750.80 is: 16,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.60 : 30,002.04 = 10,750.80 : x
  2. Step 2: Convert to fraction form
    19,995.60/30,002.04 = 10,750.80/x
  3. Step 3: Cross multiply
    19,995.60x = 30,002.04 × 10,750.80
  4. Step 4: Simplify right side
    19,995.60x = 322,545,931.63
  5. Step 5: Solve for x
    x = 322,545,931.63/19,995.60
  6. Step 6: Final answer
    x = 16,130.85

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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.