Home / 39,462.58-54,457.45-21,557.67

Finding the Fourth Proportional to 39,462.58, 54,457.45 and 21,557.67

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Solution

The fourth proportional to 39,462.58, 54,457.45 and 21,557.67 is: 29,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,462.58 : 54,457.45 = 21,557.67 : x
  2. Step 2: Convert to fraction form
    39,462.58/54,457.45 = 21,557.67/x
  3. Step 3: Cross multiply
    39,462.58x = 54,457.45 × 21,557.67
  4. Step 4: Simplify right side
    39,462.58x = 1,173,975,736.14
  5. Step 5: Solve for x
    x = 1,173,975,736.14/39,462.58
  6. Step 6: Final answer
    x = 29,749.09

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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.