Home / 19,833.90-29,772.72-9,970.53

Finding the Fourth Proportional to 19,833.90, 29,772.72 and 9,970.53

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Solution

The fourth proportional to 19,833.90, 29,772.72 and 9,970.53 is: 14,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,833.90 : 29,772.72 = 9,970.53 : x
  2. Step 2: Convert to fraction form
    19,833.90/29,772.72 = 9,970.53/x
  3. Step 3: Cross multiply
    19,833.90x = 29,772.72 × 9,970.53
  4. Step 4: Simplify right side
    19,833.90x = 296,849,797.94
  5. Step 5: Solve for x
    x = 296,849,797.94/19,833.90
  6. Step 6: Final answer
    x = 14,966.79

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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.