Home / 30,408.90-45,624.69-18,586.95

Finding the Fourth Proportional to 30,408.90, 45,624.69 and 18,586.95

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Solution

The fourth proportional to 30,408.90, 45,624.69 and 18,586.95 is: 27,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,408.90 : 45,624.69 = 18,586.95 : x
  2. Step 2: Convert to fraction form
    30,408.90/45,624.69 = 18,586.95/x
  3. Step 3: Cross multiply
    30,408.90x = 45,624.69 × 18,586.95
  4. Step 4: Simplify right side
    30,408.90x = 848,023,831.80
  5. Step 5: Solve for x
    x = 848,023,831.80/30,408.90
  6. Step 6: Final answer
    x = 27,887.36

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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.