Home / 30,645.63-45,977.67-10,921.62

Finding the Fourth Proportional to 30,645.63, 45,977.67 and 10,921.62

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Solution

The fourth proportional to 30,645.63, 45,977.67 and 10,921.62 is: 16,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,645.63 : 45,977.67 = 10,921.62 : x
  2. Step 2: Convert to fraction form
    30,645.63/45,977.67 = 10,921.62/x
  3. Step 3: Cross multiply
    30,645.63x = 45,977.67 × 10,921.62
  4. Step 4: Simplify right side
    30,645.63x = 502,150,640.23
  5. Step 5: Solve for x
    x = 502,150,640.23/30,645.63
  6. Step 6: Final answer
    x = 16,385.72

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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.