Home / 38,865.21-58,299.63-12,572

Finding the Fourth Proportional to 38,865.21, 58,299.63 and 12,572

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Solution

The fourth proportional to 38,865.21, 58,299.63 and 12,572 is: 18,858.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,865.21 : 58,299.63 = 12,572 : x
  2. Step 2: Convert to fraction form
    38,865.21/58,299.63 = 12,572/x
  3. Step 3: Cross multiply
    38,865.21x = 58,299.63 × 12,572
  4. Step 4: Simplify right side
    38,865.21x = 732,942,948.36
  5. Step 5: Solve for x
    x = 732,942,948.36/38,865.21
  6. Step 6: Final answer
    x = 18,858.59

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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.