Home / 15,790.99-21,802.13-12,033.45

Finding the Fourth Proportional to 15,790.99, 21,802.13 and 12,033.45

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Solution

The fourth proportional to 15,790.99, 21,802.13 and 12,033.45 is: 16,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790.99 : 21,802.13 = 12,033.45 : x
  2. Step 2: Convert to fraction form
    15,790.99/21,802.13 = 12,033.45/x
  3. Step 3: Cross multiply
    15,790.99x = 21,802.13 × 12,033.45
  4. Step 4: Simplify right side
    15,790.99x = 262,354,841.25
  5. Step 5: Solve for x
    x = 262,354,841.25/15,790.99
  6. Step 6: Final answer
    x = 16,614.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.