Home / 38,985.47-53,796.84-21,984.26

Finding the Fourth Proportional to 38,985.47, 53,796.84 and 21,984.26

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Solution

The fourth proportional to 38,985.47, 53,796.84 and 21,984.26 is: 30,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985.47 : 53,796.84 = 21,984.26 : x
  2. Step 2: Convert to fraction form
    38,985.47/53,796.84 = 21,984.26/x
  3. Step 3: Cross multiply
    38,985.47x = 53,796.84 × 21,984.26
  4. Step 4: Simplify right side
    38,985.47x = 1,182,683,448.75
  5. Step 5: Solve for x
    x = 1,182,683,448.75/38,985.47
  6. Step 6: Final answer
    x = 30,336.52

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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.