Home / 42,451.30-63,676.95-12,867.67

Finding the Fourth Proportional to 42,451.30, 63,676.95 and 12,867.67

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Solution

The fourth proportional to 42,451.30, 63,676.95 and 12,867.67 is: 19,301.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,451.30 : 63,676.95 = 12,867.67 : x
  2. Step 2: Convert to fraction form
    42,451.30/63,676.95 = 12,867.67/x
  3. Step 3: Cross multiply
    42,451.30x = 63,676.95 × 12,867.67
  4. Step 4: Simplify right side
    42,451.30x = 819,373,979.21
  5. Step 5: Solve for x
    x = 819,373,979.21/42,451.30
  6. Step 6: Final answer
    x = 19,301.51

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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.