Home / 28,660.77-39,547.44-16,395.21

Finding the Fourth Proportional to 28,660.77, 39,547.44 and 16,395.21

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Solution

The fourth proportional to 28,660.77, 39,547.44 and 16,395.21 is: 22,622.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.77 : 39,547.44 = 16,395.21 : x
  2. Step 2: Convert to fraction form
    28,660.77/39,547.44 = 16,395.21/x
  3. Step 3: Cross multiply
    28,660.77x = 39,547.44 × 16,395.21
  4. Step 4: Simplify right side
    28,660.77x = 648,388,583.76
  5. Step 5: Solve for x
    x = 648,388,583.76/28,660.77
  6. Step 6: Final answer
    x = 22,622.86

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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.