Home / 30,946.06-42,683.49-28,402.03

Finding the Fourth Proportional to 30,946.06, 42,683.49 and 28,402.03

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Solution

The fourth proportional to 30,946.06, 42,683.49 and 28,402.03 is: 39,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,946.06 : 42,683.49 = 28,402.03 : x
  2. Step 2: Convert to fraction form
    30,946.06/42,683.49 = 28,402.03/x
  3. Step 3: Cross multiply
    30,946.06x = 42,683.49 × 28,402.03
  4. Step 4: Simplify right side
    30,946.06x = 1,212,297,763.48
  5. Step 5: Solve for x
    x = 1,212,297,763.48/30,946.06
  6. Step 6: Final answer
    x = 39,174.54

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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.