Home / 27,155.64-37,526.25-20,429.61

Finding the Fourth Proportional to 27,155.64, 37,526.25 and 20,429.61

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Solution

The fourth proportional to 27,155.64, 37,526.25 and 20,429.61 is: 28,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.64 : 37,526.25 = 20,429.61 : x
  2. Step 2: Convert to fraction form
    27,155.64/37,526.25 = 20,429.61/x
  3. Step 3: Cross multiply
    27,155.64x = 37,526.25 × 20,429.61
  4. Step 4: Simplify right side
    27,155.64x = 766,646,652.26
  5. Step 5: Solve for x
    x = 766,646,652.26/27,155.64
  6. Step 6: Final answer
    x = 28,231.58

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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.