Home / 28,531.40-42,773.92-11,903.83

Finding the Fourth Proportional to 28,531.40, 42,773.92 and 11,903.83

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Solution

The fourth proportional to 28,531.40, 42,773.92 and 11,903.83 is: 17,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.40 : 42,773.92 = 11,903.83 : x
  2. Step 2: Convert to fraction form
    28,531.40/42,773.92 = 11,903.83/x
  3. Step 3: Cross multiply
    28,531.40x = 42,773.92 × 11,903.83
  4. Step 4: Simplify right side
    28,531.40x = 509,173,228.48
  5. Step 5: Solve for x
    x = 509,173,228.48/28,531.40
  6. Step 6: Final answer
    x = 17,846.06

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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.