Home / 38,870.18-58,257.26-20,139.44

Finding the Fourth Proportional to 38,870.18, 58,257.26 and 20,139.44

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Solution

The fourth proportional to 38,870.18, 58,257.26 and 20,139.44 is: 30,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,870.18 : 58,257.26 = 20,139.44 : x
  2. Step 2: Convert to fraction form
    38,870.18/58,257.26 = 20,139.44/x
  3. Step 3: Cross multiply
    38,870.18x = 58,257.26 × 20,139.44
  4. Step 4: Simplify right side
    38,870.18x = 1,173,268,275.87
  5. Step 5: Solve for x
    x = 1,173,268,275.87/38,870.18
  6. Step 6: Final answer
    x = 30,184.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.