Home / 21,275.06-31,927.17-7,424.06

Finding the Fourth Proportional to 21,275.06, 31,927.17 and 7,424.06

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Solution

The fourth proportional to 21,275.06, 31,927.17 and 7,424.06 is: 11,141.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.06 : 31,927.17 = 7,424.06 : x
  2. Step 2: Convert to fraction form
    21,275.06/31,927.17 = 7,424.06/x
  3. Step 3: Cross multiply
    21,275.06x = 31,927.17 × 7,424.06
  4. Step 4: Simplify right side
    21,275.06x = 237,029,225.71
  5. Step 5: Solve for x
    x = 237,029,225.71/21,275.06
  6. Step 6: Final answer
    x = 11,141.18

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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.