Home / 28,447.32-39,244.80-27,129.72

Finding the Fourth Proportional to 28,447.32, 39,244.80 and 27,129.72

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Solution

The fourth proportional to 28,447.32, 39,244.80 and 27,129.72 is: 37,427.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.32 : 39,244.80 = 27,129.72 : x
  2. Step 2: Convert to fraction form
    28,447.32/39,244.80 = 27,129.72/x
  3. Step 3: Cross multiply
    28,447.32x = 39,244.80 × 27,129.72
  4. Step 4: Simplify right side
    28,447.32x = 1,064,700,435.46
  5. Step 5: Solve for x
    x = 1,064,700,435.46/28,447.32
  6. Step 6: Final answer
    x = 37,427.09

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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.