Home / 21,233.18-29,303.42-12,735.62

Finding the Fourth Proportional to 21,233.18, 29,303.42 and 12,735.62

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Solution

The fourth proportional to 21,233.18, 29,303.42 and 12,735.62 is: 17,576.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.18 : 29,303.42 = 12,735.62 : x
  2. Step 2: Convert to fraction form
    21,233.18/29,303.42 = 12,735.62/x
  3. Step 3: Cross multiply
    21,233.18x = 29,303.42 × 12,735.62
  4. Step 4: Simplify right side
    21,233.18x = 373,197,011.63
  5. Step 5: Solve for x
    x = 373,197,011.63/21,233.18
  6. Step 6: Final answer
    x = 17,576.13

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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.