Home / 21,655.25-32,485.95-6,663.61

Finding the Fourth Proportional to 21,655.25, 32,485.95 and 6,663.61

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Solution

The fourth proportional to 21,655.25, 32,485.95 and 6,663.61 is: 9,996.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.25 : 32,485.95 = 6,663.61 : x
  2. Step 2: Convert to fraction form
    21,655.25/32,485.95 = 6,663.61/x
  3. Step 3: Cross multiply
    21,655.25x = 32,485.95 × 6,663.61
  4. Step 4: Simplify right side
    21,655.25x = 216,473,595.08
  5. Step 5: Solve for x
    x = 216,473,595.08/21,655.25
  6. Step 6: Final answer
    x = 9,996.36

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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.