Home / 21,567.24-29,762.73-12,135.81

Finding the Fourth Proportional to 21,567.24, 29,762.73 and 12,135.81

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Solution

The fourth proportional to 21,567.24, 29,762.73 and 12,135.81 is: 16,747.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.24 : 29,762.73 = 12,135.81 : x
  2. Step 2: Convert to fraction form
    21,567.24/29,762.73 = 12,135.81/x
  3. Step 3: Cross multiply
    21,567.24x = 29,762.73 × 12,135.81
  4. Step 4: Simplify right side
    21,567.24x = 361,194,836.36
  5. Step 5: Solve for x
    x = 361,194,836.36/21,567.24
  6. Step 6: Final answer
    x = 16,747.38

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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.