Home / 39,142.08-58,719.24-12,840.84

Finding the Fourth Proportional to 39,142.08, 58,719.24 and 12,840.84

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Solution

The fourth proportional to 39,142.08, 58,719.24 and 12,840.84 is: 19,263.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142.08 : 58,719.24 = 12,840.84 : x
  2. Step 2: Convert to fraction form
    39,142.08/58,719.24 = 12,840.84/x
  3. Step 3: Cross multiply
    39,142.08x = 58,719.24 × 12,840.84
  4. Step 4: Simplify right side
    39,142.08x = 754,004,365.76
  5. Step 5: Solve for x
    x = 754,004,365.76/39,142.08
  6. Step 6: Final answer
    x = 19,263.27

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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.