Home / 38,487.64-53,112.42-21,492.16

Finding the Fourth Proportional to 38,487.64, 53,112.42 and 21,492.16

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Solution

The fourth proportional to 38,487.64, 53,112.42 and 21,492.16 is: 29,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,487.64 : 53,112.42 = 21,492.16 : x
  2. Step 2: Convert to fraction form
    38,487.64/53,112.42 = 21,492.16/x
  3. Step 3: Cross multiply
    38,487.64x = 53,112.42 × 21,492.16
  4. Step 4: Simplify right side
    38,487.64x = 1,141,500,628.63
  5. Step 5: Solve for x
    x = 1,141,500,628.63/38,487.64
  6. Step 6: Final answer
    x = 29,658.89

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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.