Home / 39,807.74-54,870.93-30,216.38

Finding the Fourth Proportional to 39,807.74, 54,870.93 and 30,216.38

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Solution

The fourth proportional to 39,807.74, 54,870.93 and 30,216.38 is: 41,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,807.74 : 54,870.93 = 30,216.38 : x
  2. Step 2: Convert to fraction form
    39,807.74/54,870.93 = 30,216.38/x
  3. Step 3: Cross multiply
    39,807.74x = 54,870.93 × 30,216.38
  4. Step 4: Simplify right side
    39,807.74x = 1,658,000,871.83
  5. Step 5: Solve for x
    x = 1,658,000,871.83/39,807.74
  6. Step 6: Final answer
    x = 41,650.21

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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.