Home / 21,230.55-29,299.79-12,733.00

Finding the Fourth Proportional to 21,230.55, 29,299.79 and 12,733.00

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Solution

The fourth proportional to 21,230.55, 29,299.79 and 12,733.00 is: 17,572.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.55 : 29,299.79 = 12,733.00 : x
  2. Step 2: Convert to fraction form
    21,230.55/29,299.79 = 12,733.00/x
  3. Step 3: Cross multiply
    21,230.55x = 29,299.79 × 12,733.00
  4. Step 4: Simplify right side
    21,230.55x = 373,074,184.65
  5. Step 5: Solve for x
    x = 373,074,184.65/21,230.55
  6. Step 6: Final answer
    x = 17,572.52

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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.