Home / 37,820.64-52,190-21,903.84

Finding the Fourth Proportional to 37,820.64, 52,190 and 21,903.84

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Solution

The fourth proportional to 37,820.64, 52,190 and 21,903.84 is: 30,225.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,820.64 : 52,190 = 21,903.84 : x
  2. Step 2: Convert to fraction form
    37,820.64/52,190 = 21,903.84/x
  3. Step 3: Cross multiply
    37,820.64x = 52,190 × 21,903.84
  4. Step 4: Simplify right side
    37,820.64x = 1,143,161,409.60
  5. Step 5: Solve for x
    x = 1,143,161,409.60/37,820.64
  6. Step 6: Final answer
    x = 30,225.86

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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.