Home / 39,119.52-53,984.64-21,214.56

Finding the Fourth Proportional to 39,119.52, 53,984.64 and 21,214.56

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Solution

The fourth proportional to 39,119.52, 53,984.64 and 21,214.56 is: 29,275.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,119.52 : 53,984.64 = 21,214.56 : x
  2. Step 2: Convert to fraction form
    39,119.52/53,984.64 = 21,214.56/x
  3. Step 3: Cross multiply
    39,119.52x = 53,984.64 × 21,214.56
  4. Step 4: Simplify right side
    39,119.52x = 1,145,260,384.36
  5. Step 5: Solve for x
    x = 1,145,260,384.36/39,119.52
  6. Step 6: Final answer
    x = 29,275.93

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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.