Home / 30,676.19-45,981.41-15,870.20

Finding the Fourth Proportional to 30,676.19, 45,981.41 and 15,870.20

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Solution

The fourth proportional to 30,676.19, 45,981.41 and 15,870.20 is: 23,788.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676.19 : 45,981.41 = 15,870.20 : x
  2. Step 2: Convert to fraction form
    30,676.19/45,981.41 = 15,870.20/x
  3. Step 3: Cross multiply
    30,676.19x = 45,981.41 × 15,870.20
  4. Step 4: Simplify right side
    30,676.19x = 729,733,863.72
  5. Step 5: Solve for x
    x = 729,733,863.72/30,676.19
  6. Step 6: Final answer
    x = 23,788.29

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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.