Home / 26,661.60-36,781.57-15,328.68

Finding the Fourth Proportional to 26,661.60, 36,781.57 and 15,328.68

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Solution

The fourth proportional to 26,661.60, 36,781.57 and 15,328.68 is: 21,147.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,661.60 : 36,781.57 = 15,328.68 : x
  2. Step 2: Convert to fraction form
    26,661.60/36,781.57 = 15,328.68/x
  3. Step 3: Cross multiply
    26,661.60x = 36,781.57 × 15,328.68
  4. Step 4: Simplify right side
    26,661.60x = 563,813,016.04
  5. Step 5: Solve for x
    x = 563,813,016.04/26,661.60
  6. Step 6: Final answer
    x = 21,147.01

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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.