Home / 38,984.29-53,798.35-21,079.31

Finding the Fourth Proportional to 38,984.29, 53,798.35 and 21,079.31

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Solution

The fourth proportional to 38,984.29, 53,798.35 and 21,079.31 is: 29,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,984.29 : 53,798.35 = 21,079.31 : x
  2. Step 2: Convert to fraction form
    38,984.29/53,798.35 = 21,079.31/x
  3. Step 3: Cross multiply
    38,984.29x = 53,798.35 × 21,079.31
  4. Step 4: Simplify right side
    38,984.29x = 1,134,032,015.34
  5. Step 5: Solve for x
    x = 1,134,032,015.34/38,984.29
  6. Step 6: Final answer
    x = 29,089.46

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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.