Home / 37,138.95-51,251.04-21,005.97

Finding the Fourth Proportional to 37,138.95, 51,251.04 and 21,005.97

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Solution

The fourth proportional to 37,138.95, 51,251.04 and 21,005.97 is: 28,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,138.95 : 51,251.04 = 21,005.97 : x
  2. Step 2: Convert to fraction form
    37,138.95/51,251.04 = 21,005.97/x
  3. Step 3: Cross multiply
    37,138.95x = 51,251.04 × 21,005.97
  4. Step 4: Simplify right side
    37,138.95x = 1,076,577,808.71
  5. Step 5: Solve for x
    x = 1,076,577,808.71/37,138.95
  6. Step 6: Final answer
    x = 28,987.84

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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.