Home / 40,143.64-60,270.74-20,435.93

Finding the Fourth Proportional to 40,143.64, 60,270.74 and 20,435.93

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Solution

The fourth proportional to 40,143.64, 60,270.74 and 20,435.93 is: 30,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,143.64 : 60,270.74 = 20,435.93 : x
  2. Step 2: Convert to fraction form
    40,143.64/60,270.74 = 20,435.93/x
  3. Step 3: Cross multiply
    40,143.64x = 60,270.74 × 20,435.93
  4. Step 4: Simplify right side
    40,143.64x = 1,231,688,521.51
  5. Step 5: Solve for x
    x = 1,231,688,521.51/40,143.64
  6. Step 6: Final answer
    x = 30,682.04

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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.