Home / 39,989.39-60,020.44-21,285.08

Finding the Fourth Proportional to 39,989.39, 60,020.44 and 21,285.08

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Solution

The fourth proportional to 39,989.39, 60,020.44 and 21,285.08 is: 31,946.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,989.39 : 60,020.44 = 21,285.08 : x
  2. Step 2: Convert to fraction form
    39,989.39/60,020.44 = 21,285.08/x
  3. Step 3: Cross multiply
    39,989.39x = 60,020.44 × 21,285.08
  4. Step 4: Simplify right side
    39,989.39x = 1,277,539,460.51
  5. Step 5: Solve for x
    x = 1,277,539,460.51/39,989.39
  6. Step 6: Final answer
    x = 31,946.96

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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.