Home / 31,725.45-47,308.10-31,440.74

Finding the Fourth Proportional to 31,725.45, 47,308.10 and 31,440.74

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Solution

The fourth proportional to 31,725.45, 47,308.10 and 31,440.74 is: 46,883.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,725.45 : 47,308.10 = 31,440.74 : x
  2. Step 2: Convert to fraction form
    31,725.45/47,308.10 = 31,440.74/x
  3. Step 3: Cross multiply
    31,725.45x = 47,308.10 × 31,440.74
  4. Step 4: Simplify right side
    31,725.45x = 1,487,401,278.25
  5. Step 5: Solve for x
    x = 1,487,401,278.25/31,725.45
  6. Step 6: Final answer
    x = 46,883.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.