Home / 31,943.16-47,929.62-12,215.22

Finding the Fourth Proportional to 31,943.16, 47,929.62 and 12,215.22

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Solution

The fourth proportional to 31,943.16, 47,929.62 and 12,215.22 is: 18,328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,943.16 : 47,929.62 = 12,215.22 : x
  2. Step 2: Convert to fraction form
    31,943.16/47,929.62 = 12,215.22/x
  3. Step 3: Cross multiply
    31,943.16x = 47,929.62 × 12,215.22
  4. Step 4: Simplify right side
    31,943.16x = 585,470,852.82
  5. Step 5: Solve for x
    x = 585,470,852.82/31,943.16
  6. Step 6: Final answer
    x = 18,328.52

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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.