Home / 38,181.12-52,689.60-21,417.12

Finding the Fourth Proportional to 38,181.12, 52,689.60 and 21,417.12

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Solution

The fourth proportional to 38,181.12, 52,689.60 and 21,417.12 is: 29,555.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,181.12 : 52,689.60 = 21,417.12 : x
  2. Step 2: Convert to fraction form
    38,181.12/52,689.60 = 21,417.12/x
  3. Step 3: Cross multiply
    38,181.12x = 52,689.60 × 21,417.12
  4. Step 4: Simplify right side
    38,181.12x = 1,128,459,485.95
  5. Step 5: Solve for x
    x = 1,128,459,485.95/38,181.12
  6. Step 6: Final answer
    x = 29,555.43

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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.