Home / 31,648.10-47,474.86-8,274.50

Finding the Fourth Proportional to 31,648.10, 47,474.86 and 8,274.50

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Solution

The fourth proportional to 31,648.10, 47,474.86 and 8,274.50 is: 12,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,648.10 : 47,474.86 = 8,274.50 : x
  2. Step 2: Convert to fraction form
    31,648.10/47,474.86 = 8,274.50/x
  3. Step 3: Cross multiply
    31,648.10x = 47,474.86 × 8,274.50
  4. Step 4: Simplify right side
    31,648.10x = 392,830,729.07
  5. Step 5: Solve for x
    x = 392,830,729.07/31,648.10
  6. Step 6: Final answer
    x = 12,412.46

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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.