Home / 30,459.18-45,688.50-8,272.56

Finding the Fourth Proportional to 30,459.18, 45,688.50 and 8,272.56

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Solution

The fourth proportional to 30,459.18, 45,688.50 and 8,272.56 is: 12,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,459.18 : 45,688.50 = 8,272.56 : x
  2. Step 2: Convert to fraction form
    30,459.18/45,688.50 = 8,272.56/x
  3. Step 3: Cross multiply
    30,459.18x = 45,688.50 × 8,272.56
  4. Step 4: Simplify right side
    30,459.18x = 377,960,857.56
  5. Step 5: Solve for x
    x = 377,960,857.56/30,459.18
  6. Step 6: Final answer
    x = 12,408.77

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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.