Home / 20,590.02-28,411.83-12,092.31

Finding the Fourth Proportional to 20,590.02, 28,411.83 and 12,092.31

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Solution

The fourth proportional to 20,590.02, 28,411.83 and 12,092.31 is: 16,685.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.02 : 28,411.83 = 12,092.31 : x
  2. Step 2: Convert to fraction form
    20,590.02/28,411.83 = 12,092.31/x
  3. Step 3: Cross multiply
    20,590.02x = 28,411.83 × 12,092.31
  4. Step 4: Simplify right side
    20,590.02x = 343,564,656.03
  5. Step 5: Solve for x
    x = 343,564,656.03/20,590.02
  6. Step 6: Final answer
    x = 16,685.98

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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.