Home / 28,182.98-38,892.95-15,435.92

Finding the Fourth Proportional to 28,182.98, 38,892.95 and 15,435.92

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Solution

The fourth proportional to 28,182.98, 38,892.95 and 15,435.92 is: 21,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.98 : 38,892.95 = 15,435.92 : x
  2. Step 2: Convert to fraction form
    28,182.98/38,892.95 = 15,435.92/x
  3. Step 3: Cross multiply
    28,182.98x = 38,892.95 × 15,435.92
  4. Step 4: Simplify right side
    28,182.98x = 600,348,464.76
  5. Step 5: Solve for x
    x = 600,348,464.76/28,182.98
  6. Step 6: Final answer
    x = 21,301.81

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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.