Home / 39,539.63-54,483.90-28,185

Finding the Fourth Proportional to 39,539.63, 54,483.90 and 28,185

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Solution

The fourth proportional to 39,539.63, 54,483.90 and 28,185 is: 38,837.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,539.63 : 54,483.90 = 28,185 : x
  2. Step 2: Convert to fraction form
    39,539.63/54,483.90 = 28,185/x
  3. Step 3: Cross multiply
    39,539.63x = 54,483.90 × 28,185
  4. Step 4: Simplify right side
    39,539.63x = 1,535,628,721.50
  5. Step 5: Solve for x
    x = 1,535,628,721.50/39,539.63
  6. Step 6: Final answer
    x = 38,837.71

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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.