Home / 31,051.20-42,848.24-16,903.76

Finding the Fourth Proportional to 31,051.20, 42,848.24 and 16,903.76

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Solution

The fourth proportional to 31,051.20, 42,848.24 and 16,903.76 is: 23,325.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,051.20 : 42,848.24 = 16,903.76 : x
  2. Step 2: Convert to fraction form
    31,051.20/42,848.24 = 16,903.76/x
  3. Step 3: Cross multiply
    31,051.20x = 42,848.24 × 16,903.76
  4. Step 4: Simplify right side
    31,051.20x = 724,296,365.38
  5. Step 5: Solve for x
    x = 724,296,365.38/31,051.20
  6. Step 6: Final answer
    x = 23,325.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.