Home / 21,945.17-32,909.98-7,901.44

Finding the Fourth Proportional to 21,945.17, 32,909.98 and 7,901.44

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Solution

The fourth proportional to 21,945.17, 32,909.98 and 7,901.44 is: 11,849.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,945.17 : 32,909.98 = 7,901.44 : x
  2. Step 2: Convert to fraction form
    21,945.17/32,909.98 = 7,901.44/x
  3. Step 3: Cross multiply
    21,945.17x = 32,909.98 × 7,901.44
  4. Step 4: Simplify right side
    21,945.17x = 260,036,130.34
  5. Step 5: Solve for x
    x = 260,036,130.34/21,945.17
  6. Step 6: Final answer
    x = 11,849.35

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1.5x scale

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.