Home / 31,267.32-47,120.64-28,150.86

Finding the Fourth Proportional to 31,267.32, 47,120.64 and 28,150.86

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Solution

The fourth proportional to 31,267.32, 47,120.64 and 28,150.86 is: 42,424.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,267.32 : 47,120.64 = 28,150.86 : x
  2. Step 2: Convert to fraction form
    31,267.32/47,120.64 = 28,150.86/x
  3. Step 3: Cross multiply
    31,267.32x = 47,120.64 × 28,150.86
  4. Step 4: Simplify right side
    31,267.32x = 1,326,486,539.75
  5. Step 5: Solve for x
    x = 1,326,486,539.75/31,267.32
  6. Step 6: Final answer
    x = 42,424.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.