Home / 31,582.30-47,365.20-9,389.70

Finding the Fourth Proportional to 31,582.30, 47,365.20 and 9,389.70

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Solution

The fourth proportional to 31,582.30, 47,365.20 and 9,389.70 is: 14,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,582.30 : 47,365.20 = 9,389.70 : x
  2. Step 2: Convert to fraction form
    31,582.30/47,365.20 = 9,389.70/x
  3. Step 3: Cross multiply
    31,582.30x = 47,365.20 × 9,389.70
  4. Step 4: Simplify right side
    31,582.30x = 444,745,018.44
  5. Step 5: Solve for x
    x = 444,745,018.44/31,582.30
  6. Step 6: Final answer
    x = 14,082.10

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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.