Home / 30,347.28-45,491.54-11,612.90

Finding the Fourth Proportional to 30,347.28, 45,491.54 and 11,612.90

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Solution

The fourth proportional to 30,347.28, 45,491.54 and 11,612.90 is: 17,408.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347.28 : 45,491.54 = 11,612.90 : x
  2. Step 2: Convert to fraction form
    30,347.28/45,491.54 = 11,612.90/x
  3. Step 3: Cross multiply
    30,347.28x = 45,491.54 × 11,612.90
  4. Step 4: Simplify right side
    30,347.28x = 528,288,704.87
  5. Step 5: Solve for x
    x = 528,288,704.87/30,347.28
  6. Step 6: Final answer
    x = 17,408.11

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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.