Home / 21,252.18-29,328.54-11,821.34

Finding the Fourth Proportional to 21,252.18, 29,328.54 and 11,821.34

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Solution

The fourth proportional to 21,252.18, 29,328.54 and 11,821.34 is: 16,313.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.18 : 29,328.54 = 11,821.34 : x
  2. Step 2: Convert to fraction form
    21,252.18/29,328.54 = 11,821.34/x
  3. Step 3: Cross multiply
    21,252.18x = 29,328.54 × 11,821.34
  4. Step 4: Simplify right side
    21,252.18x = 346,702,643.04
  5. Step 5: Solve for x
    x = 346,702,643.04/21,252.18
  6. Step 6: Final answer
    x = 16,313.74

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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.