Home / 36,011.12-53,979.75-13,818.53

Finding the Fourth Proportional to 36,011.12, 53,979.75 and 13,818.53

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Solution

The fourth proportional to 36,011.12, 53,979.75 and 13,818.53 is: 20,713.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,011.12 : 53,979.75 = 13,818.53 : x
  2. Step 2: Convert to fraction form
    36,011.12/53,979.75 = 13,818.53/x
  3. Step 3: Cross multiply
    36,011.12x = 53,979.75 × 13,818.53
  4. Step 4: Simplify right side
    36,011.12x = 745,920,929.72
  5. Step 5: Solve for x
    x = 745,920,929.72/36,011.12
  6. Step 6: Final answer
    x = 20,713.63

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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.