Home / 38,315.43-52,874.64-21,320.82

Finding the Fourth Proportional to 38,315.43, 52,874.64 and 21,320.82

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Solution

The fourth proportional to 38,315.43, 52,874.64 and 21,320.82 is: 29,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,315.43 : 52,874.64 = 21,320.82 : x
  2. Step 2: Convert to fraction form
    38,315.43/52,874.64 = 21,320.82/x
  3. Step 3: Cross multiply
    38,315.43x = 52,874.64 × 21,320.82
  4. Step 4: Simplify right side
    38,315.43x = 1,127,330,682.00
  5. Step 5: Solve for x
    x = 1,127,330,682.00/38,315.43
  6. Step 6: Final answer
    x = 29,422.37

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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.