Home / 21,967.95-30,316.28-12,537.39

Finding the Fourth Proportional to 21,967.95, 30,316.28 and 12,537.39

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Solution

The fourth proportional to 21,967.95, 30,316.28 and 12,537.39 is: 17,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.95 : 30,316.28 = 12,537.39 : x
  2. Step 2: Convert to fraction form
    21,967.95/30,316.28 = 12,537.39/x
  3. Step 3: Cross multiply
    21,967.95x = 30,316.28 × 12,537.39
  4. Step 4: Simplify right side
    21,967.95x = 380,086,905.47
  5. Step 5: Solve for x
    x = 380,086,905.47/21,967.95
  6. Step 6: Final answer
    x = 17,301.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.