Home / 31,385.56-47,078.60-11,664.10

Finding the Fourth Proportional to 31,385.56, 47,078.60 and 11,664.10

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Solution

The fourth proportional to 31,385.56, 47,078.60 and 11,664.10 is: 17,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.56 : 47,078.60 = 11,664.10 : x
  2. Step 2: Convert to fraction form
    31,385.56/47,078.60 = 11,664.10/x
  3. Step 3: Cross multiply
    31,385.56x = 47,078.60 × 11,664.10
  4. Step 4: Simplify right side
    31,385.56x = 549,129,498.26
  5. Step 5: Solve for x
    x = 549,129,498.26/31,385.56
  6. Step 6: Final answer
    x = 17,496.25

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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.