Home / 37,770.39-52,119.95-21,855.86

Finding the Fourth Proportional to 37,770.39, 52,119.95 and 21,855.86

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Solution

The fourth proportional to 37,770.39, 52,119.95 and 21,855.86 is: 30,159.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,770.39 : 52,119.95 = 21,855.86 : x
  2. Step 2: Convert to fraction form
    37,770.39/52,119.95 = 21,855.86/x
  3. Step 3: Cross multiply
    37,770.39x = 52,119.95 × 21,855.86
  4. Step 4: Simplify right side
    37,770.39x = 1,139,125,960.53
  5. Step 5: Solve for x
    x = 1,139,125,960.53/37,770.39
  6. Step 6: Final answer
    x = 30,159.23

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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.