Home / 21,042.07-31,569.03-7,003.35

Finding the Fourth Proportional to 21,042.07, 31,569.03 and 7,003.35

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Solution

The fourth proportional to 21,042.07, 31,569.03 and 7,003.35 is: 10,507.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.07 : 31,569.03 = 7,003.35 : x
  2. Step 2: Convert to fraction form
    21,042.07/31,569.03 = 7,003.35/x
  3. Step 3: Cross multiply
    21,042.07x = 31,569.03 × 7,003.35
  4. Step 4: Simplify right side
    21,042.07x = 221,088,931.23
  5. Step 5: Solve for x
    x = 221,088,931.23/21,042.07
  6. Step 6: Final answer
    x = 10,507.00

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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.