Home / 38,272.77-57,435.28-13,312.57

Finding the Fourth Proportional to 38,272.77, 57,435.28 and 13,312.57

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Solution

The fourth proportional to 38,272.77, 57,435.28 and 13,312.57 is: 19,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,272.77 : 57,435.28 = 13,312.57 : x
  2. Step 2: Convert to fraction form
    38,272.77/57,435.28 = 13,312.57/x
  3. Step 3: Cross multiply
    38,272.77x = 57,435.28 × 13,312.57
  4. Step 4: Simplify right side
    38,272.77x = 764,611,185.47
  5. Step 5: Solve for x
    x = 764,611,185.47/38,272.77
  6. Step 6: Final answer
    x = 19,977.94

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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.