Home / 37,782.84-52,140.18-21,015.84

Finding the Fourth Proportional to 37,782.84, 52,140.18 and 21,015.84

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Solution

The fourth proportional to 37,782.84, 52,140.18 and 21,015.84 is: 29,001.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,782.84 : 52,140.18 = 21,015.84 : x
  2. Step 2: Convert to fraction form
    37,782.84/52,140.18 = 21,015.84/x
  3. Step 3: Cross multiply
    37,782.84x = 52,140.18 × 21,015.84
  4. Step 4: Simplify right side
    37,782.84x = 1,095,769,680.45
  5. Step 5: Solve for x
    x = 1,095,769,680.45/37,782.84
  6. Step 6: Final answer
    x = 29,001.78

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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.