Home / 21,585.02-29,788.39-12,154.62

Finding the Fourth Proportional to 21,585.02, 29,788.39 and 12,154.62

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Solution

The fourth proportional to 21,585.02, 29,788.39 and 12,154.62 is: 16,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.02 : 29,788.39 = 12,154.62 : x
  2. Step 2: Convert to fraction form
    21,585.02/29,788.39 = 12,154.62/x
  3. Step 3: Cross multiply
    21,585.02x = 29,788.39 × 12,154.62
  4. Step 4: Simplify right side
    21,585.02x = 362,066,560.86
  5. Step 5: Solve for x
    x = 362,066,560.86/21,585.02
  6. Step 6: Final answer
    x = 16,773.97

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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.