Home / 28,705.59-39,611.84-16,127.91

Finding the Fourth Proportional to 28,705.59, 39,611.84 and 16,127.91

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Solution

The fourth proportional to 28,705.59, 39,611.84 and 16,127.91 is: 22,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.59 : 39,611.84 = 16,127.91 : x
  2. Step 2: Convert to fraction form
    28,705.59/39,611.84 = 16,127.91/x
  3. Step 3: Cross multiply
    28,705.59x = 39,611.84 × 16,127.91
  4. Step 4: Simplify right side
    28,705.59x = 638,856,109.81
  5. Step 5: Solve for x
    x = 638,856,109.81/28,705.59
  6. Step 6: Final answer
    x = 22,255.46

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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.