Home / 28,532.70-39,373.34-15,785.58

Finding the Fourth Proportional to 28,532.70, 39,373.34 and 15,785.58

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Solution

The fourth proportional to 28,532.70, 39,373.34 and 15,785.58 is: 21,783.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.70 : 39,373.34 = 15,785.58 : x
  2. Step 2: Convert to fraction form
    28,532.70/39,373.34 = 15,785.58/x
  3. Step 3: Cross multiply
    28,532.70x = 39,373.34 × 15,785.58
  4. Step 4: Simplify right side
    28,532.70x = 621,531,008.44
  5. Step 5: Solve for x
    x = 621,531,008.44/28,532.70
  6. Step 6: Final answer
    x = 21,783.11

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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.