Home / 37,039.64-51,113.40-21,129.18

Finding the Fourth Proportional to 37,039.64, 51,113.40 and 21,129.18

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Solution

The fourth proportional to 37,039.64, 51,113.40 and 21,129.18 is: 29,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,039.64 : 51,113.40 = 21,129.18 : x
  2. Step 2: Convert to fraction form
    37,039.64/51,113.40 = 21,129.18/x
  3. Step 3: Cross multiply
    37,039.64x = 51,113.40 × 21,129.18
  4. Step 4: Simplify right side
    37,039.64x = 1,079,984,229.01
  5. Step 5: Solve for x
    x = 1,079,984,229.01/37,039.64
  6. Step 6: Final answer
    x = 29,157.52

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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.