Home / 21,336.82-29,442.46-15,038.26

Finding the Fourth Proportional to 21,336.82, 29,442.46 and 15,038.26

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Solution

The fourth proportional to 21,336.82, 29,442.46 and 15,038.26 is: 20,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.82 : 29,442.46 = 15,038.26 : x
  2. Step 2: Convert to fraction form
    21,336.82/29,442.46 = 15,038.26/x
  3. Step 3: Cross multiply
    21,336.82x = 29,442.46 × 15,038.26
  4. Step 4: Simplify right side
    21,336.82x = 442,763,368.52
  5. Step 5: Solve for x
    x = 442,763,368.52/21,336.82
  6. Step 6: Final answer
    x = 20,751.14

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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.