Home / 40,308.84-55,567.60-28,171.64

Finding the Fourth Proportional to 40,308.84, 55,567.60 and 28,171.64

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Solution

The fourth proportional to 40,308.84, 55,567.60 and 28,171.64 is: 38,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,308.84 : 55,567.60 = 28,171.64 : x
  2. Step 2: Convert to fraction form
    40,308.84/55,567.60 = 28,171.64/x
  3. Step 3: Cross multiply
    40,308.84x = 55,567.60 × 28,171.64
  4. Step 4: Simplify right side
    40,308.84x = 1,565,430,422.86
  5. Step 5: Solve for x
    x = 1,565,430,422.86/40,308.84
  6. Step 6: Final answer
    x = 38,835.91

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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.