Home / 50,407.70-69,569.25-28,905.86

Finding the Fourth Proportional to 50,407.70, 69,569.25 and 28,905.86

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Solution

The fourth proportional to 50,407.70, 69,569.25 and 28,905.86 is: 39,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,407.70 : 69,569.25 = 28,905.86 : x
  2. Step 2: Convert to fraction form
    50,407.70/69,569.25 = 28,905.86/x
  3. Step 3: Cross multiply
    50,407.70x = 69,569.25 × 28,905.86
  4. Step 4: Simplify right side
    50,407.70x = 2,010,959,000.81
  5. Step 5: Solve for x
    x = 2,010,959,000.81/50,407.70
  6. Step 6: Final answer
    x = 39,893.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.