Home / 30,347.45-45,523.89-8,160.34

Finding the Fourth Proportional to 30,347.45, 45,523.89 and 8,160.34

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Solution

The fourth proportional to 30,347.45, 45,523.89 and 8,160.34 is: 12,241.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347.45 : 45,523.89 = 8,160.34 : x
  2. Step 2: Convert to fraction form
    30,347.45/45,523.89 = 8,160.34/x
  3. Step 3: Cross multiply
    30,347.45x = 45,523.89 × 8,160.34
  4. Step 4: Simplify right side
    30,347.45x = 371,490,306.71
  5. Step 5: Solve for x
    x = 371,490,306.71/30,347.45
  6. Step 6: Final answer
    x = 12,241.24

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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.