Home / 28,051.56-38,708.46-15,475.50

Finding the Fourth Proportional to 28,051.56, 38,708.46 and 15,475.50

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Solution

The fourth proportional to 28,051.56, 38,708.46 and 15,475.50 is: 21,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.56 : 38,708.46 = 15,475.50 : x
  2. Step 2: Convert to fraction form
    28,051.56/38,708.46 = 15,475.50/x
  3. Step 3: Cross multiply
    28,051.56x = 38,708.46 × 15,475.50
  4. Step 4: Simplify right side
    28,051.56x = 599,032,772.73
  5. Step 5: Solve for x
    x = 599,032,772.73/28,051.56
  6. Step 6: Final answer
    x = 21,354.70

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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.