Home / 28,263.93-39,002.27-15,687.69

Finding the Fourth Proportional to 28,263.93, 39,002.27 and 15,687.69

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Solution

The fourth proportional to 28,263.93, 39,002.27 and 15,687.69 is: 21,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.93 : 39,002.27 = 15,687.69 : x
  2. Step 2: Convert to fraction form
    28,263.93/39,002.27 = 15,687.69/x
  3. Step 3: Cross multiply
    28,263.93x = 39,002.27 × 15,687.69
  4. Step 4: Simplify right side
    28,263.93x = 611,855,521.06
  5. Step 5: Solve for x
    x = 611,855,521.06/28,263.93
  6. Step 6: Final answer
    x = 21,647.93

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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.