Home / 21,276.48-29,357.04-12,325.44

Finding the Fourth Proportional to 21,276.48, 29,357.04 and 12,325.44

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Solution

The fourth proportional to 21,276.48, 29,357.04 and 12,325.44 is: 17,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.48 : 29,357.04 = 12,325.44 : x
  2. Step 2: Convert to fraction form
    21,276.48/29,357.04 = 12,325.44/x
  3. Step 3: Cross multiply
    21,276.48x = 29,357.04 × 12,325.44
  4. Step 4: Simplify right side
    21,276.48x = 361,838,435.10
  5. Step 5: Solve for x
    x = 361,838,435.10/21,276.48
  6. Step 6: Final answer
    x = 17,006.50

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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.