Home / 31,530.32-47,302.40-9,345.44

Finding the Fourth Proportional to 31,530.32, 47,302.40 and 9,345.44

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Solution

The fourth proportional to 31,530.32, 47,302.40 and 9,345.44 is: 14,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.32 : 47,302.40 = 9,345.44 : x
  2. Step 2: Convert to fraction form
    31,530.32/47,302.40 = 9,345.44/x
  3. Step 3: Cross multiply
    31,530.32x = 47,302.40 × 9,345.44
  4. Step 4: Simplify right side
    31,530.32x = 442,061,457.82
  5. Step 5: Solve for x
    x = 442,061,457.82/31,530.32
  6. Step 6: Final answer
    x = 14,020.20

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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.