Home / 27,303.78-37,680.43-15,367.89

Finding the Fourth Proportional to 27,303.78, 37,680.43 and 15,367.89

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Solution

The fourth proportional to 27,303.78, 37,680.43 and 15,367.89 is: 21,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,303.78 : 37,680.43 = 15,367.89 : x
  2. Step 2: Convert to fraction form
    27,303.78/37,680.43 = 15,367.89/x
  3. Step 3: Cross multiply
    27,303.78x = 37,680.43 × 15,367.89
  4. Step 4: Simplify right side
    27,303.78x = 579,068,703.39
  5. Step 5: Solve for x
    x = 579,068,703.39/27,303.78
  6. Step 6: Final answer
    x = 21,208.37

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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.