Home / 38,754.78-58,157.70-21,236.91

Finding the Fourth Proportional to 38,754.78, 58,157.70 and 21,236.91

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Solution

The fourth proportional to 38,754.78, 58,157.70 and 21,236.91 is: 31,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,754.78 : 58,157.70 = 21,236.91 : x
  2. Step 2: Convert to fraction form
    38,754.78/58,157.70 = 21,236.91/x
  3. Step 3: Cross multiply
    38,754.78x = 58,157.70 × 21,236.91
  4. Step 4: Simplify right side
    38,754.78x = 1,235,089,840.71
  5. Step 5: Solve for x
    x = 1,235,089,840.71/38,754.78
  6. Step 6: Final answer
    x = 31,869.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.