Home / 20,801.35-31,184.47-9,702.19

Finding the Fourth Proportional to 20,801.35, 31,184.47 and 9,702.19

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Solution

The fourth proportional to 20,801.35, 31,184.47 and 9,702.19 is: 14,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.35 : 31,184.47 = 9,702.19 : x
  2. Step 2: Convert to fraction form
    20,801.35/31,184.47 = 9,702.19/x
  3. Step 3: Cross multiply
    20,801.35x = 31,184.47 × 9,702.19
  4. Step 4: Simplify right side
    20,801.35x = 302,557,652.99
  5. Step 5: Solve for x
    x = 302,557,652.99/20,801.35
  6. Step 6: Final answer
    x = 14,545.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.