Home / 19,950.31-29,851.59-14,689.21

Finding the Fourth Proportional to 19,950.31, 29,851.59 and 14,689.21

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Solution

The fourth proportional to 19,950.31, 29,851.59 and 14,689.21 is: 21,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.31 : 29,851.59 = 14,689.21 : x
  2. Step 2: Convert to fraction form
    19,950.31/29,851.59 = 14,689.21/x
  3. Step 3: Cross multiply
    19,950.31x = 29,851.59 × 14,689.21
  4. Step 4: Simplify right side
    19,950.31x = 438,496,274.34
  5. Step 5: Solve for x
    x = 438,496,274.34/19,950.31
  6. Step 6: Final answer
    x = 21,979.42

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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.