Home / 21,762.18-30,034.53-12,333.78

Finding the Fourth Proportional to 21,762.18, 30,034.53 and 12,333.78

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Solution

The fourth proportional to 21,762.18, 30,034.53 and 12,333.78 is: 17,022.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.18 : 30,034.53 = 12,333.78 : x
  2. Step 2: Convert to fraction form
    21,762.18/30,034.53 = 12,333.78/x
  3. Step 3: Cross multiply
    21,762.18x = 30,034.53 × 12,333.78
  4. Step 4: Simplify right side
    21,762.18x = 370,439,285.42
  5. Step 5: Solve for x
    x = 370,439,285.42/21,762.18
  6. Step 6: Final answer
    x = 17,022.16

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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.