Home / 38,396.34-52,985.61-21,400.02

Finding the Fourth Proportional to 38,396.34, 52,985.61 and 21,400.02

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Solution

The fourth proportional to 38,396.34, 52,985.61 and 21,400.02 is: 29,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,396.34 : 52,985.61 = 21,400.02 : x
  2. Step 2: Convert to fraction form
    38,396.34/52,985.61 = 21,400.02/x
  3. Step 3: Cross multiply
    38,396.34x = 52,985.61 × 21,400.02
  4. Step 4: Simplify right side
    38,396.34x = 1,133,893,113.71
  5. Step 5: Solve for x
    x = 1,133,893,113.71/38,396.34
  6. Step 6: Final answer
    x = 29,531.28

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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.