Home / 20,886.56-31,310.64-9,032.92

Finding the Fourth Proportional to 20,886.56, 31,310.64 and 9,032.92

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Solution

The fourth proportional to 20,886.56, 31,310.64 and 9,032.92 is: 13,541.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.56 : 31,310.64 = 9,032.92 : x
  2. Step 2: Convert to fraction form
    20,886.56/31,310.64 = 9,032.92/x
  3. Step 3: Cross multiply
    20,886.56x = 31,310.64 × 9,032.92
  4. Step 4: Simplify right side
    20,886.56x = 282,826,506.27
  5. Step 5: Solve for x
    x = 282,826,506.27/20,886.56
  6. Step 6: Final answer
    x = 13,541.08

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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.