Home / 28,714.08-39,623.40-16,140.72

Finding the Fourth Proportional to 28,714.08, 39,623.40 and 16,140.72

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Solution

The fourth proportional to 28,714.08, 39,623.40 and 16,140.72 is: 22,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,714.08 : 39,623.40 = 16,140.72 : x
  2. Step 2: Convert to fraction form
    28,714.08/39,623.40 = 16,140.72/x
  3. Step 3: Cross multiply
    28,714.08x = 39,623.40 × 16,140.72
  4. Step 4: Simplify right side
    28,714.08x = 639,550,204.85
  5. Step 5: Solve for x
    x = 639,550,204.85/28,714.08
  6. Step 6: Final answer
    x = 22,273.05

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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.