Home / 38,611.33-53,284.65-21,615.50

Finding the Fourth Proportional to 38,611.33, 53,284.65 and 21,615.50

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Solution

The fourth proportional to 38,611.33, 53,284.65 and 21,615.50 is: 29,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,611.33 : 53,284.65 = 21,615.50 : x
  2. Step 2: Convert to fraction form
    38,611.33/53,284.65 = 21,615.50/x
  3. Step 3: Cross multiply
    38,611.33x = 53,284.65 × 21,615.50
  4. Step 4: Simplify right side
    38,611.33x = 1,151,774,104.50
  5. Step 5: Solve for x
    x = 1,151,774,104.50/38,611.33
  6. Step 6: Final answer
    x = 29,829.95

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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.