Home / 28,064.84-38,733.20-17,856.80

Finding the Fourth Proportional to 28,064.84, 38,733.20 and 17,856.80

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Solution

The fourth proportional to 28,064.84, 38,733.20 and 17,856.80 is: 24,644.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,064.84 : 38,733.20 = 17,856.80 : x
  2. Step 2: Convert to fraction form
    28,064.84/38,733.20 = 17,856.80/x
  3. Step 3: Cross multiply
    28,064.84x = 38,733.20 × 17,856.80
  4. Step 4: Simplify right side
    28,064.84x = 691,651,005.76
  5. Step 5: Solve for x
    x = 691,651,005.76/28,064.84
  6. Step 6: Final answer
    x = 24,644.75

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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.