Home / 38,158.48-52,653-21,804.45

Finding the Fourth Proportional to 38,158.48, 52,653 and 21,804.45

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Solution

The fourth proportional to 38,158.48, 52,653 and 21,804.45 is: 30,086.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,158.48 : 52,653 = 21,804.45 : x
  2. Step 2: Convert to fraction form
    38,158.48/52,653 = 21,804.45/x
  3. Step 3: Cross multiply
    38,158.48x = 52,653 × 21,804.45
  4. Step 4: Simplify right side
    38,158.48x = 1,148,069,705.85
  5. Step 5: Solve for x
    x = 1,148,069,705.85/38,158.48
  6. Step 6: Final answer
    x = 30,086.88

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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.