Home / 31,511.61-47,276.69-9,325.58

Finding the Fourth Proportional to 31,511.61, 47,276.69 and 9,325.58

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Solution

The fourth proportional to 31,511.61, 47,276.69 and 9,325.58 is: 13,991.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.61 : 47,276.69 = 9,325.58 : x
  2. Step 2: Convert to fraction form
    31,511.61/47,276.69 = 9,325.58/x
  3. Step 3: Cross multiply
    31,511.61x = 47,276.69 × 9,325.58
  4. Step 4: Simplify right side
    31,511.61x = 440,882,271.72
  5. Step 5: Solve for x
    x = 440,882,271.72/31,511.61
  6. Step 6: Final answer
    x = 13,991.11

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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.