Home / 31,645.26-47,430.63-12,913.61

Finding the Fourth Proportional to 31,645.26, 47,430.63 and 12,913.61

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Solution

The fourth proportional to 31,645.26, 47,430.63 and 12,913.61 is: 19,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.26 : 47,430.63 = 12,913.61 : x
  2. Step 2: Convert to fraction form
    31,645.26/47,430.63 = 12,913.61/x
  3. Step 3: Cross multiply
    31,645.26x = 47,430.63 × 12,913.61
  4. Step 4: Simplify right side
    31,645.26x = 612,500,420.72
  5. Step 5: Solve for x
    x = 612,500,420.72/31,645.26
  6. Step 6: Final answer
    x = 19,355.20

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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.