Home / 21,068.06-31,575.76-10,541.09

Finding the Fourth Proportional to 21,068.06, 31,575.76 and 10,541.09

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Solution

The fourth proportional to 21,068.06, 31,575.76 and 10,541.09 is: 15,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.06 : 31,575.76 = 10,541.09 : x
  2. Step 2: Convert to fraction form
    21,068.06/31,575.76 = 10,541.09/x
  3. Step 3: Cross multiply
    21,068.06x = 31,575.76 × 10,541.09
  4. Step 4: Simplify right side
    21,068.06x = 332,842,980.57
  5. Step 5: Solve for x
    x = 332,842,980.57/21,068.06
  6. Step 6: Final answer
    x = 15,798.47

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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.