Home / 38,988.53-53,804.60-21,083.88

Finding the Fourth Proportional to 38,988.53, 53,804.60 and 21,083.88

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Solution

The fourth proportional to 38,988.53, 53,804.60 and 21,083.88 is: 29,095.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988.53 : 53,804.60 = 21,083.88 : x
  2. Step 2: Convert to fraction form
    38,988.53/53,804.60 = 21,083.88/x
  3. Step 3: Cross multiply
    38,988.53x = 53,804.60 × 21,083.88
  4. Step 4: Simplify right side
    38,988.53x = 1,134,409,624.43
  5. Step 5: Solve for x
    x = 1,134,409,624.43/38,988.53
  6. Step 6: Final answer
    x = 29,095.99

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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.