Home / 20,303.16-30,470.12-8,624.56

Finding the Fourth Proportional to 20,303.16, 30,470.12 and 8,624.56

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Solution

The fourth proportional to 20,303.16, 30,470.12 and 8,624.56 is: 12,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.16 : 30,470.12 = 8,624.56 : x
  2. Step 2: Convert to fraction form
    20,303.16/30,470.12 = 8,624.56/x
  3. Step 3: Cross multiply
    20,303.16x = 30,470.12 × 8,624.56
  4. Step 4: Simplify right side
    20,303.16x = 262,791,378.15
  5. Step 5: Solve for x
    x = 262,791,378.15/20,303.16
  6. Step 6: Final answer
    x = 12,943.37

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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.