Home / 28,700.93-39,606.52-15,953.81

Finding the Fourth Proportional to 28,700.93, 39,606.52 and 15,953.81

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Solution

The fourth proportional to 28,700.93, 39,606.52 and 15,953.81 is: 22,015.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700.93 : 39,606.52 = 15,953.81 : x
  2. Step 2: Convert to fraction form
    28,700.93/39,606.52 = 15,953.81/x
  3. Step 3: Cross multiply
    28,700.93x = 39,606.52 × 15,953.81
  4. Step 4: Simplify right side
    28,700.93x = 631,874,909.62
  5. Step 5: Solve for x
    x = 631,874,909.62/28,700.93
  6. Step 6: Final answer
    x = 22,015.83

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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.