Home / 28,370.83-39,151.04-15,623.91

Finding the Fourth Proportional to 28,370.83, 39,151.04 and 15,623.91

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Solution

The fourth proportional to 28,370.83, 39,151.04 and 15,623.91 is: 21,560.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.83 : 39,151.04 = 15,623.91 : x
  2. Step 2: Convert to fraction form
    28,370.83/39,151.04 = 15,623.91/x
  3. Step 3: Cross multiply
    28,370.83x = 39,151.04 × 15,623.91
  4. Step 4: Simplify right side
    28,370.83x = 611,692,345.12
  5. Step 5: Solve for x
    x = 611,692,345.12/28,370.83
  6. Step 6: Final answer
    x = 21,560.61

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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.