Home / 21,134.90-31,703.33-11,767.87

Finding the Fourth Proportional to 21,134.90, 31,703.33 and 11,767.87

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Solution

The fourth proportional to 21,134.90, 31,703.33 and 11,767.87 is: 17,652.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.90 : 31,703.33 = 11,767.87 : x
  2. Step 2: Convert to fraction form
    21,134.90/31,703.33 = 11,767.87/x
  3. Step 3: Cross multiply
    21,134.90x = 31,703.33 × 11,767.87
  4. Step 4: Simplify right side
    21,134.90x = 373,080,666.01
  5. Step 5: Solve for x
    x = 373,080,666.01/21,134.90
  6. Step 6: Final answer
    x = 17,652.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.