Home / 20,985.16-28,963.41-12,032.73

Finding the Fourth Proportional to 20,985.16, 28,963.41 and 12,032.73

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Solution

The fourth proportional to 20,985.16, 28,963.41 and 12,032.73 is: 16,607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985.16 : 28,963.41 = 12,032.73 : x
  2. Step 2: Convert to fraction form
    20,985.16/28,963.41 = 12,032.73/x
  3. Step 3: Cross multiply
    20,985.16x = 28,963.41 × 12,032.73
  4. Step 4: Simplify right side
    20,985.16x = 348,508,892.41
  5. Step 5: Solve for x
    x = 348,508,892.41/20,985.16
  6. Step 6: Final answer
    x = 16,607.40

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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.