Home / 38,985.32-53,796.63-21,984.12

Finding the Fourth Proportional to 38,985.32, 53,796.63 and 21,984.12

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Solution

The fourth proportional to 38,985.32, 53,796.63 and 21,984.12 is: 30,336.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985.32 : 53,796.63 = 21,984.12 : x
  2. Step 2: Convert to fraction form
    38,985.32/53,796.63 = 21,984.12/x
  3. Step 3: Cross multiply
    38,985.32x = 53,796.63 × 21,984.12
  4. Step 4: Simplify right side
    38,985.32x = 1,182,671,569.52
  5. Step 5: Solve for x
    x = 1,182,671,569.52/38,985.32
  6. Step 6: Final answer
    x = 30,336.33

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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.