Home / 20,333.61-30,509.18-7,862.41

Finding the Fourth Proportional to 20,333.61, 30,509.18 and 7,862.41

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Solution

The fourth proportional to 20,333.61, 30,509.18 and 7,862.41 is: 11,797.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333.61 : 30,509.18 = 7,862.41 : x
  2. Step 2: Convert to fraction form
    20,333.61/30,509.18 = 7,862.41/x
  3. Step 3: Cross multiply
    20,333.61x = 30,509.18 × 7,862.41
  4. Step 4: Simplify right side
    20,333.61x = 239,875,681.92
  5. Step 5: Solve for x
    x = 239,875,681.92/20,333.61
  6. Step 6: Final answer
    x = 11,797.00

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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.