Home / 30,440.10-45,638.61-10,440

Finding the Fourth Proportional to 30,440.10, 45,638.61 and 10,440

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Solution

The fourth proportional to 30,440.10, 45,638.61 and 10,440 is: 15,652.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.10 : 45,638.61 = 10,440 : x
  2. Step 2: Convert to fraction form
    30,440.10/45,638.61 = 10,440/x
  3. Step 3: Cross multiply
    30,440.10x = 45,638.61 × 10,440
  4. Step 4: Simplify right side
    30,440.10x = 476,467,088.40
  5. Step 5: Solve for x
    x = 476,467,088.40/30,440.10
  6. Step 6: Final answer
    x = 15,652.61

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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.