Home / 40,316.76-55,606.86-28,383.48

Finding the Fourth Proportional to 40,316.76, 55,606.86 and 28,383.48

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Solution

The fourth proportional to 40,316.76, 55,606.86 and 28,383.48 is: 39,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,316.76 : 55,606.86 = 28,383.48 : x
  2. Step 2: Convert to fraction form
    40,316.76/55,606.86 = 28,383.48/x
  3. Step 3: Cross multiply
    40,316.76x = 55,606.86 × 28,383.48
  4. Step 4: Simplify right side
    40,316.76x = 1,578,316,198.67
  5. Step 5: Solve for x
    x = 1,578,316,198.67/40,316.76
  6. Step 6: Final answer
    x = 39,147.89

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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.