Home / 21,488.89-29,647.07-14,041.21

Finding the Fourth Proportional to 21,488.89, 29,647.07 and 14,041.21

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Solution

The fourth proportional to 21,488.89, 29,647.07 and 14,041.21 is: 19,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.89 : 29,647.07 = 14,041.21 : x
  2. Step 2: Convert to fraction form
    21,488.89/29,647.07 = 14,041.21/x
  3. Step 3: Cross multiply
    21,488.89x = 29,647.07 × 14,041.21
  4. Step 4: Simplify right side
    21,488.89x = 416,280,665.55
  5. Step 5: Solve for x
    x = 416,280,665.55/21,488.89
  6. Step 6: Final answer
    x = 19,371.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.