Home / 21,339.24-32,012.10-7,485

Finding the Fourth Proportional to 21,339.24, 32,012.10 and 7,485

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Solution

The fourth proportional to 21,339.24, 32,012.10 and 7,485 is: 11,228.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339.24 : 32,012.10 = 7,485 : x
  2. Step 2: Convert to fraction form
    21,339.24/32,012.10 = 7,485/x
  3. Step 3: Cross multiply
    21,339.24x = 32,012.10 × 7,485
  4. Step 4: Simplify right side
    21,339.24x = 239,610,568.50
  5. Step 5: Solve for x
    x = 239,610,568.50/21,339.24
  6. Step 6: Final answer
    x = 11,228.64

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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.