Home / 30,230.18-45,345.21-8,043.55

Finding the Fourth Proportional to 30,230.18, 45,345.21 and 8,043.55

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Solution

The fourth proportional to 30,230.18, 45,345.21 and 8,043.55 is: 12,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.18 : 45,345.21 = 8,043.55 : x
  2. Step 2: Convert to fraction form
    30,230.18/45,345.21 = 8,043.55/x
  3. Step 3: Cross multiply
    30,230.18x = 45,345.21 × 8,043.55
  4. Step 4: Simplify right side
    30,230.18x = 364,736,463.90
  5. Step 5: Solve for x
    x = 364,736,463.90/30,230.18
  6. Step 6: Final answer
    x = 12,065.31

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Double scale
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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.