Home / 21,369.24-32,050.62-7,515

Finding the Fourth Proportional to 21,369.24, 32,050.62 and 7,515

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Solution

The fourth proportional to 21,369.24, 32,050.62 and 7,515 is: 11,271.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,369.24 : 32,050.62 = 7,515 : x
  2. Step 2: Convert to fraction form
    21,369.24/32,050.62 = 7,515/x
  3. Step 3: Cross multiply
    21,369.24x = 32,050.62 × 7,515
  4. Step 4: Simplify right side
    21,369.24x = 240,860,409.30
  5. Step 5: Solve for x
    x = 240,860,409.30/21,369.24
  6. Step 6: Final answer
    x = 11,271.36

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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.