Home / 38,112.40-52,595.21-21,116.51

Finding the Fourth Proportional to 38,112.40, 52,595.21 and 21,116.51

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Solution

The fourth proportional to 38,112.40, 52,595.21 and 21,116.51 is: 29,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,112.40 : 52,595.21 = 21,116.51 : x
  2. Step 2: Convert to fraction form
    38,112.40/52,595.21 = 21,116.51/x
  3. Step 3: Cross multiply
    38,112.40x = 52,595.21 × 21,116.51
  4. Step 4: Simplify right side
    38,112.40x = 1,110,627,376.05
  5. Step 5: Solve for x
    x = 1,110,627,376.05/38,112.40
  6. Step 6: Final answer
    x = 29,140.84

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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.