Home / 28,206.93-38,923.65-15,459.96

Finding the Fourth Proportional to 28,206.93, 38,923.65 and 15,459.96

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Solution

The fourth proportional to 28,206.93, 38,923.65 and 15,459.96 is: 21,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.93 : 38,923.65 = 15,459.96 : x
  2. Step 2: Convert to fraction form
    28,206.93/38,923.65 = 15,459.96/x
  3. Step 3: Cross multiply
    28,206.93x = 38,923.65 × 15,459.96
  4. Step 4: Simplify right side
    28,206.93x = 601,758,072.05
  5. Step 5: Solve for x
    x = 601,758,072.05/28,206.93
  6. Step 6: Final answer
    x = 21,333.70

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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.