Home / 31,582.77-47,341.22-12,855.30

Finding the Fourth Proportional to 31,582.77, 47,341.22 and 12,855.30

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Solution

The fourth proportional to 31,582.77, 47,341.22 and 12,855.30 is: 19,269.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,582.77 : 47,341.22 = 12,855.30 : x
  2. Step 2: Convert to fraction form
    31,582.77/47,341.22 = 12,855.30/x
  3. Step 3: Cross multiply
    31,582.77x = 47,341.22 × 12,855.30
  4. Step 4: Simplify right side
    31,582.77x = 608,585,521.19
  5. Step 5: Solve for x
    x = 608,585,521.19/31,582.77
  6. Step 6: Final answer
    x = 19,269.54

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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.