Home / 47,320.22-70,980.34-12,259.88

Finding the Fourth Proportional to 47,320.22, 70,980.34 and 12,259.88

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Solution

The fourth proportional to 47,320.22, 70,980.34 and 12,259.88 is: 18,389.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,320.22 : 70,980.34 = 12,259.88 : x
  2. Step 2: Convert to fraction form
    47,320.22/70,980.34 = 12,259.88/x
  3. Step 3: Cross multiply
    47,320.22x = 70,980.34 × 12,259.88
  4. Step 4: Simplify right side
    47,320.22x = 870,210,450.76
  5. Step 5: Solve for x
    x = 870,210,450.76/47,320.22
  6. Step 6: Final answer
    x = 18,389.82

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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.