Home / 31,512.47-47,267.75-12,792.05

Finding the Fourth Proportional to 31,512.47, 47,267.75 and 12,792.05

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Solution

The fourth proportional to 31,512.47, 47,267.75 and 12,792.05 is: 19,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.47 : 47,267.75 = 12,792.05 : x
  2. Step 2: Convert to fraction form
    31,512.47/47,267.75 = 12,792.05/x
  3. Step 3: Cross multiply
    31,512.47x = 47,267.75 × 12,792.05
  4. Step 4: Simplify right side
    31,512.47x = 604,651,527.22
  5. Step 5: Solve for x
    x = 604,651,527.22/31,512.47
  6. Step 6: Final answer
    x = 19,187.69

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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.