Home / 21,603.12-32,357.70-10,486.41

Finding the Fourth Proportional to 21,603.12, 32,357.70 and 10,486.41

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Solution

The fourth proportional to 21,603.12, 32,357.70 and 10,486.41 is: 15,706.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603.12 : 32,357.70 = 10,486.41 : x
  2. Step 2: Convert to fraction form
    21,603.12/32,357.70 = 10,486.41/x
  3. Step 3: Cross multiply
    21,603.12x = 32,357.70 × 10,486.41
  4. Step 4: Simplify right side
    21,603.12x = 339,316,108.86
  5. Step 5: Solve for x
    x = 339,316,108.86/21,603.12
  6. Step 6: Final answer
    x = 15,706.81

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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.