Home / 20,916.34-31,365.29-9,826.18

Finding the Fourth Proportional to 20,916.34, 31,365.29 and 9,826.18

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Solution

The fourth proportional to 20,916.34, 31,365.29 and 9,826.18 is: 14,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.34 : 31,365.29 = 9,826.18 : x
  2. Step 2: Convert to fraction form
    20,916.34/31,365.29 = 9,826.18/x
  3. Step 3: Cross multiply
    20,916.34x = 31,365.29 × 9,826.18
  4. Step 4: Simplify right side
    20,916.34x = 308,200,853.03
  5. Step 5: Solve for x
    x = 308,200,853.03/20,916.34
  6. Step 6: Final answer
    x = 14,734.94

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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.