Home / 38,148.14-52,643.49-21,152.45

Finding the Fourth Proportional to 38,148.14, 52,643.49 and 21,152.45

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Solution

The fourth proportional to 38,148.14, 52,643.49 and 21,152.45 is: 29,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,148.14 : 52,643.49 = 21,152.45 : x
  2. Step 2: Convert to fraction form
    38,148.14/52,643.49 = 21,152.45/x
  3. Step 3: Cross multiply
    38,148.14x = 52,643.49 × 21,152.45
  4. Step 4: Simplify right side
    38,148.14x = 1,113,538,790.05
  5. Step 5: Solve for x
    x = 1,113,538,790.05/38,148.14
  6. Step 6: Final answer
    x = 29,189.86

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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.