Home / 45,003.84-67,444.20-20,960.16

Finding the Fourth Proportional to 45,003.84, 67,444.20 and 20,960.16

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Solution

The fourth proportional to 45,003.84, 67,444.20 and 20,960.16 is: 31,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,003.84 : 67,444.20 = 20,960.16 : x
  2. Step 2: Convert to fraction form
    45,003.84/67,444.20 = 20,960.16/x
  3. Step 3: Cross multiply
    45,003.84x = 67,444.20 × 20,960.16
  4. Step 4: Simplify right side
    45,003.84x = 1,413,641,223.07
  5. Step 5: Solve for x
    x = 1,413,641,223.07/45,003.84
  6. Step 6: Final answer
    x = 31,411.57

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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.