Home / 39,903.03-55,066.54-21,998.67

Finding the Fourth Proportional to 39,903.03, 55,066.54 and 21,998.67

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Solution

The fourth proportional to 39,903.03, 55,066.54 and 21,998.67 is: 30,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,903.03 : 55,066.54 = 21,998.67 : x
  2. Step 2: Convert to fraction form
    39,903.03/55,066.54 = 21,998.67/x
  3. Step 3: Cross multiply
    39,903.03x = 55,066.54 × 21,998.67
  4. Step 4: Simplify right side
    39,903.03x = 1,211,390,696.50
  5. Step 5: Solve for x
    x = 1,211,390,696.50/39,903.03
  6. Step 6: Final answer
    x = 30,358.36

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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.