Home / 39,038.48-53,873.53-21,133.86

Finding the Fourth Proportional to 39,038.48, 53,873.53 and 21,133.86

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Solution

The fourth proportional to 39,038.48, 53,873.53 and 21,133.86 is: 29,164.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,038.48 : 53,873.53 = 21,133.86 : x
  2. Step 2: Convert to fraction form
    39,038.48/53,873.53 = 21,133.86/x
  3. Step 3: Cross multiply
    39,038.48x = 53,873.53 × 21,133.86
  4. Step 4: Simplify right side
    39,038.48x = 1,138,555,669.74
  5. Step 5: Solve for x
    x = 1,138,555,669.74/39,038.48
  6. Step 6: Final answer
    x = 29,164.96

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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.