Home / 51,617.84-77,358.72-20,436.08

Finding the Fourth Proportional to 51,617.84, 77,358.72 and 20,436.08

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Solution

The fourth proportional to 51,617.84, 77,358.72 and 20,436.08 is: 30,627.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,617.84 : 77,358.72 = 20,436.08 : x
  2. Step 2: Convert to fraction form
    51,617.84/77,358.72 = 20,436.08/x
  3. Step 3: Cross multiply
    51,617.84x = 77,358.72 × 20,436.08
  4. Step 4: Simplify right side
    51,617.84x = 1,580,908,990.62
  5. Step 5: Solve for x
    x = 1,580,908,990.62/51,617.84
  6. Step 6: Final answer
    x = 30,627.18

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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.