Home / 31,460.15-47,189.88-12,735.11

Finding the Fourth Proportional to 31,460.15, 47,189.88 and 12,735.11

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Solution

The fourth proportional to 31,460.15, 47,189.88 and 12,735.11 is: 19,102.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,460.15 : 47,189.88 = 12,735.11 : x
  2. Step 2: Convert to fraction form
    31,460.15/47,189.88 = 12,735.11/x
  3. Step 3: Cross multiply
    31,460.15x = 47,189.88 × 12,735.11
  4. Step 4: Simplify right side
    31,460.15x = 600,968,430.66
  5. Step 5: Solve for x
    x = 600,968,430.66/31,460.15
  6. Step 6: Final answer
    x = 19,102.53

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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.