Home / 28,182.63-38,892.47-15,435.59

Finding the Fourth Proportional to 28,182.63, 38,892.47 and 15,435.59

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Solution

The fourth proportional to 28,182.63, 38,892.47 and 15,435.59 is: 21,301.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.63 : 38,892.47 = 15,435.59 : x
  2. Step 2: Convert to fraction form
    28,182.63/38,892.47 = 15,435.59/x
  3. Step 3: Cross multiply
    28,182.63x = 38,892.47 × 15,435.59
  4. Step 4: Simplify right side
    28,182.63x = 600,327,949.37
  5. Step 5: Solve for x
    x = 600,327,949.37/28,182.63
  6. Step 6: Final answer
    x = 21,301.34

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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.