Home / 20,698.60-31,047.94-10,840.76

Finding the Fourth Proportional to 20,698.60, 31,047.94 and 10,840.76

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Solution

The fourth proportional to 20,698.60, 31,047.94 and 10,840.76 is: 16,261.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.60 : 31,047.94 = 10,840.76 : x
  2. Step 2: Convert to fraction form
    20,698.60/31,047.94 = 10,840.76/x
  3. Step 3: Cross multiply
    20,698.60x = 31,047.94 × 10,840.76
  4. Step 4: Simplify right side
    20,698.60x = 336,583,266.03
  5. Step 5: Solve for x
    x = 336,583,266.03/20,698.60
  6. Step 6: Final answer
    x = 16,261.16

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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.