Home / 20,531.02-28,331.11-12,032.02

Finding the Fourth Proportional to 20,531.02, 28,331.11 and 12,032.02

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Solution

The fourth proportional to 20,531.02, 28,331.11 and 12,032.02 is: 16,603.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531.02 : 28,331.11 = 12,032.02 : x
  2. Step 2: Convert to fraction form
    20,531.02/28,331.11 = 12,032.02/x
  3. Step 3: Cross multiply
    20,531.02x = 28,331.11 × 12,032.02
  4. Step 4: Simplify right side
    20,531.02x = 340,880,482.14
  5. Step 5: Solve for x
    x = 340,880,482.14/20,531.02
  6. Step 6: Final answer
    x = 16,603.19

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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.