Home / 38,563.81-57,779.70-21,045.94

Finding the Fourth Proportional to 38,563.81, 57,779.70 and 21,045.94

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Solution

The fourth proportional to 38,563.81, 57,779.70 and 21,045.94 is: 31,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,563.81 : 57,779.70 = 21,045.94 : x
  2. Step 2: Convert to fraction form
    38,563.81/57,779.70 = 21,045.94/x
  3. Step 3: Cross multiply
    38,563.81x = 57,779.70 × 21,045.94
  4. Step 4: Simplify right side
    38,563.81x = 1,216,028,099.42
  5. Step 5: Solve for x
    x = 1,216,028,099.42/38,563.81
  6. Step 6: Final answer
    x = 31,532.88

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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.