Home / 21,239.06-31,862.60-7,008.35

Finding the Fourth Proportional to 21,239.06, 31,862.60 and 7,008.35

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Solution

The fourth proportional to 21,239.06, 31,862.60 and 7,008.35 is: 10,513.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,239.06 : 31,862.60 = 7,008.35 : x
  2. Step 2: Convert to fraction form
    21,239.06/31,862.60 = 7,008.35/x
  3. Step 3: Cross multiply
    21,239.06x = 31,862.60 × 7,008.35
  4. Step 4: Simplify right side
    21,239.06x = 223,304,058.36
  5. Step 5: Solve for x
    x = 223,304,058.36/21,239.06
  6. Step 6: Final answer
    x = 10,513.84

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1.5x scale

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.