Home / 40,884.55-61,326.86-12,807.05

Finding the Fourth Proportional to 40,884.55, 61,326.86 and 12,807.05

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Solution

The fourth proportional to 40,884.55, 61,326.86 and 12,807.05 is: 19,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,884.55 : 61,326.86 = 12,807.05 : x
  2. Step 2: Convert to fraction form
    40,884.55/61,326.86 = 12,807.05/x
  3. Step 3: Cross multiply
    40,884.55x = 61,326.86 × 12,807.05
  4. Step 4: Simplify right side
    40,884.55x = 785,415,791.69
  5. Step 5: Solve for x
    x = 785,415,791.69/40,884.55
  6. Step 6: Final answer
    x = 19,210.58

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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.