Home / 30,401.22-45,601.56-12,868.50

Finding the Fourth Proportional to 30,401.22, 45,601.56 and 12,868.50

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Solution

The fourth proportional to 30,401.22, 45,601.56 and 12,868.50 is: 19,302.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,401.22 : 45,601.56 = 12,868.50 : x
  2. Step 2: Convert to fraction form
    30,401.22/45,601.56 = 12,868.50/x
  3. Step 3: Cross multiply
    30,401.22x = 45,601.56 × 12,868.50
  4. Step 4: Simplify right side
    30,401.22x = 586,823,674.86
  5. Step 5: Solve for x
    x = 586,823,674.86/30,401.22
  6. Step 6: Final answer
    x = 19,302.64

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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.