Home / 35,973.92-53,970.64-20,402.56

Finding the Fourth Proportional to 35,973.92, 53,970.64 and 20,402.56

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Solution

The fourth proportional to 35,973.92, 53,970.64 and 20,402.56 is: 30,609.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,973.92 : 53,970.64 = 20,402.56 : x
  2. Step 2: Convert to fraction form
    35,973.92/53,970.64 = 20,402.56/x
  3. Step 3: Cross multiply
    35,973.92x = 53,970.64 × 20,402.56
  4. Step 4: Simplify right side
    35,973.92x = 1,101,139,220.84
  5. Step 5: Solve for x
    x = 1,101,139,220.84/35,973.92
  6. Step 6: Final answer
    x = 30,609.38

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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.