Home / 39,168.02-54,051.78-21,262.86

Finding the Fourth Proportional to 39,168.02, 54,051.78 and 21,262.86

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Solution

The fourth proportional to 39,168.02, 54,051.78 and 21,262.86 is: 29,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.02 : 54,051.78 = 21,262.86 : x
  2. Step 2: Convert to fraction form
    39,168.02/54,051.78 = 21,262.86/x
  3. Step 3: Cross multiply
    39,168.02x = 54,051.78 × 21,262.86
  4. Step 4: Simplify right side
    39,168.02x = 1,149,295,430.89
  5. Step 5: Solve for x
    x = 1,149,295,430.89/39,168.02
  6. Step 6: Final answer
    x = 29,342.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.