Home / 22,051.95-30,431.90-11,980.46

Finding the Fourth Proportional to 22,051.95, 30,431.90 and 11,980.46

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Solution

The fourth proportional to 22,051.95, 30,431.90 and 11,980.46 is: 16,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.95 : 30,431.90 = 11,980.46 : x
  2. Step 2: Convert to fraction form
    22,051.95/30,431.90 = 11,980.46/x
  3. Step 3: Cross multiply
    22,051.95x = 30,431.90 × 11,980.46
  4. Step 4: Simplify right side
    22,051.95x = 364,587,948.61
  5. Step 5: Solve for x
    x = 364,587,948.61/22,051.95
  6. Step 6: Final answer
    x = 16,533.14

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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.