Home / 30,372.73-45,565.77-9,315.66

Finding the Fourth Proportional to 30,372.73, 45,565.77 and 9,315.66

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Solution

The fourth proportional to 30,372.73, 45,565.77 and 9,315.66 is: 13,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.73 : 45,565.77 = 9,315.66 : x
  2. Step 2: Convert to fraction form
    30,372.73/45,565.77 = 9,315.66/x
  3. Step 3: Cross multiply
    30,372.73x = 45,565.77 × 9,315.66
  4. Step 4: Simplify right side
    30,372.73x = 424,475,220.96
  5. Step 5: Solve for x
    x = 424,475,220.96/30,372.73
  6. Step 6: Final answer
    x = 13,975.54

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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.