Home / 28,008.74-38,652.99-15,433.76

Finding the Fourth Proportional to 28,008.74, 38,652.99 and 15,433.76

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Solution

The fourth proportional to 28,008.74, 38,652.99 and 15,433.76 is: 21,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.74 : 38,652.99 = 15,433.76 : x
  2. Step 2: Convert to fraction form
    28,008.74/38,652.99 = 15,433.76/x
  3. Step 3: Cross multiply
    28,008.74x = 38,652.99 × 15,433.76
  4. Step 4: Simplify right side
    28,008.74x = 596,560,970.94
  5. Step 5: Solve for x
    x = 596,560,970.94/28,008.74
  6. Step 6: Final answer
    x = 21,299.10

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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.