Home / 39,415.37-54,378.95-30,343.50

Finding the Fourth Proportional to 39,415.37, 54,378.95 and 30,343.50

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Solution

The fourth proportional to 39,415.37, 54,378.95 and 30,343.50 is: 41,863.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,415.37 : 54,378.95 = 30,343.50 : x
  2. Step 2: Convert to fraction form
    39,415.37/54,378.95 = 30,343.50/x
  3. Step 3: Cross multiply
    39,415.37x = 54,378.95 × 30,343.50
  4. Step 4: Simplify right side
    39,415.37x = 1,650,047,669.33
  5. Step 5: Solve for x
    x = 1,650,047,669.33/39,415.37
  6. Step 6: Final answer
    x = 41,863.06

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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.