Home / 31,590.28-47,383.98-11,867.32

Finding the Fourth Proportional to 31,590.28, 47,383.98 and 11,867.32

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Solution

The fourth proportional to 31,590.28, 47,383.98 and 11,867.32 is: 17,800.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.28 : 47,383.98 = 11,867.32 : x
  2. Step 2: Convert to fraction form
    31,590.28/47,383.98 = 11,867.32/x
  3. Step 3: Cross multiply
    31,590.28x = 47,383.98 × 11,867.32
  4. Step 4: Simplify right side
    31,590.28x = 562,320,853.53
  5. Step 5: Solve for x
    x = 562,320,853.53/31,590.28
  6. Step 6: Final answer
    x = 17,800.44

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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.