Home / 39,518.28-54,536.40-21,612.96

Finding the Fourth Proportional to 39,518.28, 54,536.40 and 21,612.96

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Solution

The fourth proportional to 39,518.28, 54,536.40 and 21,612.96 is: 29,826.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,518.28 : 54,536.40 = 21,612.96 : x
  2. Step 2: Convert to fraction form
    39,518.28/54,536.40 = 21,612.96/x
  3. Step 3: Cross multiply
    39,518.28x = 54,536.40 × 21,612.96
  4. Step 4: Simplify right side
    39,518.28x = 1,178,693,031.74
  5. Step 5: Solve for x
    x = 1,178,693,031.74/39,518.28
  6. Step 6: Final answer
    x = 29,826.53

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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.