Home / 31,037.14-42,832.02-16,890.76

Finding the Fourth Proportional to 31,037.14, 42,832.02 and 16,890.76

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Solution

The fourth proportional to 31,037.14, 42,832.02 and 16,890.76 is: 23,309.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,037.14 : 42,832.02 = 16,890.76 : x
  2. Step 2: Convert to fraction form
    31,037.14/42,832.02 = 16,890.76/x
  3. Step 3: Cross multiply
    31,037.14x = 42,832.02 × 16,890.76
  4. Step 4: Simplify right side
    31,037.14x = 723,465,370.14
  5. Step 5: Solve for x
    x = 723,465,370.14/31,037.14
  6. Step 6: Final answer
    x = 23,309.67

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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.