Home / 20,953.60-31,425.54-9,260.44

Finding the Fourth Proportional to 20,953.60, 31,425.54 and 9,260.44

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Solution

The fourth proportional to 20,953.60, 31,425.54 and 9,260.44 is: 13,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.60 : 31,425.54 = 9,260.44 : x
  2. Step 2: Convert to fraction form
    20,953.60/31,425.54 = 9,260.44/x
  3. Step 3: Cross multiply
    20,953.60x = 31,425.54 × 9,260.44
  4. Step 4: Simplify right side
    20,953.60x = 291,014,327.64
  5. Step 5: Solve for x
    x = 291,014,327.64/20,953.60
  6. Step 6: Final answer
    x = 13,888.51

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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.