Home / 23,130.80-34,671.36-9,989.36

Finding the Fourth Proportional to 23,130.80, 34,671.36 and 9,989.36

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Solution

The fourth proportional to 23,130.80, 34,671.36 and 9,989.36 is: 14,973.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.80 : 34,671.36 = 9,989.36 : x
  2. Step 2: Convert to fraction form
    23,130.80/34,671.36 = 9,989.36/x
  3. Step 3: Cross multiply
    23,130.80x = 34,671.36 × 9,989.36
  4. Step 4: Simplify right side
    23,130.80x = 346,344,696.73
  5. Step 5: Solve for x
    x = 346,344,696.73/23,130.80
  6. Step 6: Final answer
    x = 14,973.31

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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.