Home / 21,975.56-32,881.02-13,058.40

Finding the Fourth Proportional to 21,975.56, 32,881.02 and 13,058.40

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Solution

The fourth proportional to 21,975.56, 32,881.02 and 13,058.40 is: 19,538.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.56 : 32,881.02 = 13,058.40 : x
  2. Step 2: Convert to fraction form
    21,975.56/32,881.02 = 13,058.40/x
  3. Step 3: Cross multiply
    21,975.56x = 32,881.02 × 13,058.40
  4. Step 4: Simplify right side
    21,975.56x = 429,373,511.57
  5. Step 5: Solve for x
    x = 429,373,511.57/21,975.56
  6. Step 6: Final answer
    x = 19,538.68

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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.