Home / 21,465.60-29,623.30-12,511.66

Finding the Fourth Proportional to 21,465.60, 29,623.30 and 12,511.66

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Solution

The fourth proportional to 21,465.60, 29,623.30 and 12,511.66 is: 17,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.60 : 29,623.30 = 12,511.66 : x
  2. Step 2: Convert to fraction form
    21,465.60/29,623.30 = 12,511.66/x
  3. Step 3: Cross multiply
    21,465.60x = 29,623.30 × 12,511.66
  4. Step 4: Simplify right side
    21,465.60x = 370,636,552.34
  5. Step 5: Solve for x
    x = 370,636,552.34/21,465.60
  6. Step 6: Final answer
    x = 17,266.54

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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.