Home / 36,009.08-53,980.78-12,622.76

Finding the Fourth Proportional to 36,009.08, 53,980.78 and 12,622.76

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Solution

The fourth proportional to 36,009.08, 53,980.78 and 12,622.76 is: 18,922.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,009.08 : 53,980.78 = 12,622.76 : x
  2. Step 2: Convert to fraction form
    36,009.08/53,980.78 = 12,622.76/x
  3. Step 3: Cross multiply
    36,009.08x = 53,980.78 × 12,622.76
  4. Step 4: Simplify right side
    36,009.08x = 681,386,430.55
  5. Step 5: Solve for x
    x = 681,386,430.55/36,009.08
  6. Step 6: Final answer
    x = 18,922.63

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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.