Home / 20,626.02-28,476.12-13,564.62

Finding the Fourth Proportional to 20,626.02, 28,476.12 and 13,564.62

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Solution

The fourth proportional to 20,626.02, 28,476.12 and 13,564.62 is: 18,727.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.02 : 28,476.12 = 13,564.62 : x
  2. Step 2: Convert to fraction form
    20,626.02/28,476.12 = 13,564.62/x
  3. Step 3: Cross multiply
    20,626.02x = 28,476.12 × 13,564.62
  4. Step 4: Simplify right side
    20,626.02x = 386,267,746.87
  5. Step 5: Solve for x
    x = 386,267,746.87/20,626.02
  6. Step 6: Final answer
    x = 18,727.21

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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.