Home / 38,521.40-57,782.10-30,745.40

Finding the Fourth Proportional to 38,521.40, 57,782.10 and 30,745.40

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Solution

The fourth proportional to 38,521.40, 57,782.10 and 30,745.40 is: 46,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,521.40 : 57,782.10 = 30,745.40 : x
  2. Step 2: Convert to fraction form
    38,521.40/57,782.10 = 30,745.40/x
  3. Step 3: Cross multiply
    38,521.40x = 57,782.10 × 30,745.40
  4. Step 4: Simplify right side
    38,521.40x = 1,776,533,777.34
  5. Step 5: Solve for x
    x = 1,776,533,777.34/38,521.40
  6. Step 6: Final answer
    x = 46,118.10

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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.