Home / 31,376.08-47,065.74-8,002.72

Finding the Fourth Proportional to 31,376.08, 47,065.74 and 8,002.72

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Solution

The fourth proportional to 31,376.08, 47,065.74 and 8,002.72 is: 12,004.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,376.08 : 47,065.74 = 8,002.72 : x
  2. Step 2: Convert to fraction form
    31,376.08/47,065.74 = 8,002.72/x
  3. Step 3: Cross multiply
    31,376.08x = 47,065.74 × 8,002.72
  4. Step 4: Simplify right side
    31,376.08x = 376,653,938.81
  5. Step 5: Solve for x
    x = 376,653,938.81/31,376.08
  6. Step 6: Final answer
    x = 12,004.49

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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.