Home / 28,606.86-39,474.30-15,859.71

Finding the Fourth Proportional to 28,606.86, 39,474.30 and 15,859.71

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Solution

The fourth proportional to 28,606.86, 39,474.30 and 15,859.71 is: 21,884.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.86 : 39,474.30 = 15,859.71 : x
  2. Step 2: Convert to fraction form
    28,606.86/39,474.30 = 15,859.71/x
  3. Step 3: Cross multiply
    28,606.86x = 39,474.30 × 15,859.71
  4. Step 4: Simplify right side
    28,606.86x = 626,050,950.45
  5. Step 5: Solve for x
    x = 626,050,950.45/28,606.86
  6. Step 6: Final answer
    x = 21,884.64

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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.