Home / 21,603.15-32,406.30-7,561.62

Finding the Fourth Proportional to 21,603.15, 32,406.30 and 7,561.62

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Solution

The fourth proportional to 21,603.15, 32,406.30 and 7,561.62 is: 11,342.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603.15 : 32,406.30 = 7,561.62 : x
  2. Step 2: Convert to fraction form
    21,603.15/32,406.30 = 7,561.62/x
  3. Step 3: Cross multiply
    21,603.15x = 32,406.30 × 7,561.62
  4. Step 4: Simplify right side
    21,603.15x = 245,044,126.21
  5. Step 5: Solve for x
    x = 245,044,126.21/21,603.15
  6. Step 6: Final answer
    x = 11,342.98

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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.