Home / 42,971.85-64,450.34-11,799.81

Finding the Fourth Proportional to 42,971.85, 64,450.34 and 11,799.81

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Solution

The fourth proportional to 42,971.85, 64,450.34 and 11,799.81 is: 17,697.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,971.85 : 64,450.34 = 11,799.81 : x
  2. Step 2: Convert to fraction form
    42,971.85/64,450.34 = 11,799.81/x
  3. Step 3: Cross multiply
    42,971.85x = 64,450.34 × 11,799.81
  4. Step 4: Simplify right side
    42,971.85x = 760,501,707.44
  5. Step 5: Solve for x
    x = 760,501,707.44/42,971.85
  6. Step 6: Final answer
    x = 17,697.67

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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.