Home / 28,719.36-43,090.16-13,927.20

Finding the Fourth Proportional to 28,719.36, 43,090.16 and 13,927.20

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Solution

The fourth proportional to 28,719.36, 43,090.16 and 13,927.20 is: 20,896.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.36 : 43,090.16 = 13,927.20 : x
  2. Step 2: Convert to fraction form
    28,719.36/43,090.16 = 13,927.20/x
  3. Step 3: Cross multiply
    28,719.36x = 43,090.16 × 13,927.20
  4. Step 4: Simplify right side
    28,719.36x = 600,125,276.35
  5. Step 5: Solve for x
    x = 600,125,276.35/28,719.36
  6. Step 6: Final answer
    x = 20,896.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.