Home / 36,715.81-55,072.74-10,420.55

Finding the Fourth Proportional to 36,715.81, 55,072.74 and 10,420.55

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Solution

The fourth proportional to 36,715.81, 55,072.74 and 10,420.55 is: 15,630.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,715.81 : 55,072.74 = 10,420.55 : x
  2. Step 2: Convert to fraction form
    36,715.81/55,072.74 = 10,420.55/x
  3. Step 3: Cross multiply
    36,715.81x = 55,072.74 × 10,420.55
  4. Step 4: Simplify right side
    36,715.81x = 573,888,240.81
  5. Step 5: Solve for x
    x = 573,888,240.81/36,715.81
  6. Step 6: Final answer
    x = 15,630.55

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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.