Home / 21,897.96-30,219.18-12,466.50

Finding the Fourth Proportional to 21,897.96, 30,219.18 and 12,466.50

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Solution

The fourth proportional to 21,897.96, 30,219.18 and 12,466.50 is: 17,203.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897.96 : 30,219.18 = 12,466.50 : x
  2. Step 2: Convert to fraction form
    21,897.96/30,219.18 = 12,466.50/x
  3. Step 3: Cross multiply
    21,897.96x = 30,219.18 × 12,466.50
  4. Step 4: Simplify right side
    21,897.96x = 376,727,407.47
  5. Step 5: Solve for x
    x = 376,727,407.47/21,897.96
  6. Step 6: Final answer
    x = 17,203.77

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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.