Home / 39,409.70-54,325.05-28,045.22

Finding the Fourth Proportional to 39,409.70, 54,325.05 and 28,045.22

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Solution

The fourth proportional to 39,409.70, 54,325.05 and 28,045.22 is: 38,659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,409.70 : 54,325.05 = 28,045.22 : x
  2. Step 2: Convert to fraction form
    39,409.70/54,325.05 = 28,045.22/x
  3. Step 3: Cross multiply
    39,409.70x = 54,325.05 × 28,045.22
  4. Step 4: Simplify right side
    39,409.70x = 1,523,557,978.76
  5. Step 5: Solve for x
    x = 1,523,557,978.76/39,409.70
  6. Step 6: Final answer
    x = 38,659.47

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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.