Home / 21,232.96-29,302.08-12,279.60

Finding the Fourth Proportional to 21,232.96, 29,302.08 and 12,279.60

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Solution

The fourth proportional to 21,232.96, 29,302.08 and 12,279.60 is: 16,946.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.96 : 29,302.08 = 12,279.60 : x
  2. Step 2: Convert to fraction form
    21,232.96/29,302.08 = 12,279.60/x
  3. Step 3: Cross multiply
    21,232.96x = 29,302.08 × 12,279.60
  4. Step 4: Simplify right side
    21,232.96x = 359,817,821.57
  5. Step 5: Solve for x
    x = 359,817,821.57/21,232.96
  6. Step 6: Final answer
    x = 16,946.19

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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.