Home / 38,652.16-53,339.84-20,988.16

Finding the Fourth Proportional to 38,652.16, 53,339.84 and 20,988.16

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Solution

The fourth proportional to 38,652.16, 53,339.84 and 20,988.16 is: 28,963.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,652.16 : 53,339.84 = 20,988.16 : x
  2. Step 2: Convert to fraction form
    38,652.16/53,339.84 = 20,988.16/x
  3. Step 3: Cross multiply
    38,652.16x = 53,339.84 × 20,988.16
  4. Step 4: Simplify right side
    38,652.16x = 1,119,505,096.29
  5. Step 5: Solve for x
    x = 1,119,505,096.29/38,652.16
  6. Step 6: Final answer
    x = 28,963.58

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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.