Home / 39,035.69-53,869.25-21,130.84

Finding the Fourth Proportional to 39,035.69, 53,869.25 and 21,130.84

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Solution

The fourth proportional to 39,035.69, 53,869.25 and 21,130.84 is: 29,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,035.69 : 53,869.25 = 21,130.84 : x
  2. Step 2: Convert to fraction form
    39,035.69/53,869.25 = 21,130.84/x
  3. Step 3: Cross multiply
    39,035.69x = 53,869.25 × 21,130.84
  4. Step 4: Simplify right side
    39,035.69x = 1,138,302,622.83
  5. Step 5: Solve for x
    x = 1,138,302,622.83/39,035.69
  6. Step 6: Final answer
    x = 29,160.56

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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.