Home / 30,557.15-45,833.67-8,370.71

Finding the Fourth Proportional to 30,557.15, 45,833.67 and 8,370.71

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Solution

The fourth proportional to 30,557.15, 45,833.67 and 8,370.71 is: 12,555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,557.15 : 45,833.67 = 8,370.71 : x
  2. Step 2: Convert to fraction form
    30,557.15/45,833.67 = 8,370.71/x
  3. Step 3: Cross multiply
    30,557.15x = 45,833.67 × 8,370.71
  4. Step 4: Simplify right side
    30,557.15x = 383,660,130.64
  5. Step 5: Solve for x
    x = 383,660,130.64/30,557.15
  6. Step 6: Final answer
    x = 12,555.50

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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.