Home / 21,193.04-29,247.72-12,242.20

Finding the Fourth Proportional to 21,193.04, 29,247.72 and 12,242.20

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Solution

The fourth proportional to 21,193.04, 29,247.72 and 12,242.20 is: 16,895.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.04 : 29,247.72 = 12,242.20 : x
  2. Step 2: Convert to fraction form
    21,193.04/29,247.72 = 12,242.20/x
  3. Step 3: Cross multiply
    21,193.04x = 29,247.72 × 12,242.20
  4. Step 4: Simplify right side
    21,193.04x = 358,056,437.78
  5. Step 5: Solve for x
    x = 358,056,437.78/21,193.04
  6. Step 6: Final answer
    x = 16,895.00

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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.