Home / 35,346.10-48,778.81-20,807.67

Finding the Fourth Proportional to 35,346.10, 48,778.81 and 20,807.67

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Solution

The fourth proportional to 35,346.10, 48,778.81 and 20,807.67 is: 28,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,346.10 : 48,778.81 = 20,807.67 : x
  2. Step 2: Convert to fraction form
    35,346.10/48,778.81 = 20,807.67/x
  3. Step 3: Cross multiply
    35,346.10x = 48,778.81 × 20,807.67
  4. Step 4: Simplify right side
    35,346.10x = 1,014,973,033.54
  5. Step 5: Solve for x
    x = 1,014,973,033.54/35,346.10
  6. Step 6: Final answer
    x = 28,715.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.