Home / 21,051.14-31,573.13-7,009.58

Finding the Fourth Proportional to 21,051.14, 31,573.13 and 7,009.58

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Solution

The fourth proportional to 21,051.14, 31,573.13 and 7,009.58 is: 10,513.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.14 : 31,573.13 = 7,009.58 : x
  2. Step 2: Convert to fraction form
    21,051.14/31,573.13 = 7,009.58/x
  3. Step 3: Cross multiply
    21,051.14x = 31,573.13 × 7,009.58
  4. Step 4: Simplify right side
    21,051.14x = 221,314,275.37
  5. Step 5: Solve for x
    x = 221,314,275.37/21,051.14
  6. Step 6: Final answer
    x = 10,513.17

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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.