Home / 30,638.16-45,961.20-10,922.40

Finding the Fourth Proportional to 30,638.16, 45,961.20 and 10,922.40

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Solution

The fourth proportional to 30,638.16, 45,961.20 and 10,922.40 is: 16,385.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,638.16 : 45,961.20 = 10,922.40 : x
  2. Step 2: Convert to fraction form
    30,638.16/45,961.20 = 10,922.40/x
  3. Step 3: Cross multiply
    30,638.16x = 45,961.20 × 10,922.40
  4. Step 4: Simplify right side
    30,638.16x = 502,006,610.88
  5. Step 5: Solve for x
    x = 502,006,610.88/30,638.16
  6. Step 6: Final answer
    x = 16,385.01

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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.