Home / 36,009.02-53,980.86-12,622.70

Finding the Fourth Proportional to 36,009.02, 53,980.86 and 12,622.70

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Solution

The fourth proportional to 36,009.02, 53,980.86 and 12,622.70 is: 18,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,009.02 : 53,980.86 = 12,622.70 : x
  2. Step 2: Convert to fraction form
    36,009.02/53,980.86 = 12,622.70/x
  3. Step 3: Cross multiply
    36,009.02x = 53,980.86 × 12,622.70
  4. Step 4: Simplify right side
    36,009.02x = 681,384,383.81
  5. Step 5: Solve for x
    x = 681,384,383.81/36,009.02
  6. Step 6: Final answer
    x = 18,922.60

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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.