Home / 30,210.89-45,320.94-15,411.73

Finding the Fourth Proportional to 30,210.89, 45,320.94 and 15,411.73

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Solution

The fourth proportional to 30,210.89, 45,320.94 and 15,411.73 is: 23,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.89 : 45,320.94 = 15,411.73 : x
  2. Step 2: Convert to fraction form
    30,210.89/45,320.94 = 15,411.73/x
  3. Step 3: Cross multiply
    30,210.89x = 45,320.94 × 15,411.73
  4. Step 4: Simplify right side
    30,210.89x = 698,474,090.63
  5. Step 5: Solve for x
    x = 698,474,090.63/30,210.89
  6. Step 6: Final answer
    x = 23,119.94

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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.