Home / 28,437.66-39,245.04-15,864.84

Finding the Fourth Proportional to 28,437.66, 39,245.04 and 15,864.84

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Solution

The fourth proportional to 28,437.66, 39,245.04 and 15,864.84 is: 21,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,437.66 : 39,245.04 = 15,864.84 : x
  2. Step 2: Convert to fraction form
    28,437.66/39,245.04 = 15,864.84/x
  3. Step 3: Cross multiply
    28,437.66x = 39,245.04 × 15,864.84
  4. Step 4: Simplify right side
    28,437.66x = 622,616,280.39
  5. Step 5: Solve for x
    x = 622,616,280.39/28,437.66
  6. Step 6: Final answer
    x = 21,894.08

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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.