Home / 21,881.34-32,829.30-7,090.74

Finding the Fourth Proportional to 21,881.34, 32,829.30 and 7,090.74

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Solution

The fourth proportional to 21,881.34, 32,829.30 and 7,090.74 is: 10,638.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,881.34 : 32,829.30 = 7,090.74 : x
  2. Step 2: Convert to fraction form
    21,881.34/32,829.30 = 7,090.74/x
  3. Step 3: Cross multiply
    21,881.34x = 32,829.30 × 7,090.74
  4. Step 4: Simplify right side
    21,881.34x = 232,784,030.68
  5. Step 5: Solve for x
    x = 232,784,030.68/21,881.34
  6. Step 6: Final answer
    x = 10,638.47

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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.