Home / 28,531.15-42,773.54-11,903.57

Finding the Fourth Proportional to 28,531.15, 42,773.54 and 11,903.57

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Solution

The fourth proportional to 28,531.15, 42,773.54 and 11,903.57 is: 17,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.15 : 42,773.54 = 11,903.57 : x
  2. Step 2: Convert to fraction form
    28,531.15/42,773.54 = 11,903.57/x
  3. Step 3: Cross multiply
    28,531.15x = 42,773.54 × 11,903.57
  4. Step 4: Simplify right side
    28,531.15x = 509,158,055.59
  5. Step 5: Solve for x
    x = 509,158,055.59/28,531.15
  6. Step 6: Final answer
    x = 17,845.69

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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.