Home / 27,986.61-42,002.40-13,946.07

Finding the Fourth Proportional to 27,986.61, 42,002.40 and 13,946.07

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Solution

The fourth proportional to 27,986.61, 42,002.40 and 13,946.07 is: 20,930.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.61 : 42,002.40 = 13,946.07 : x
  2. Step 2: Convert to fraction form
    27,986.61/42,002.40 = 13,946.07/x
  3. Step 3: Cross multiply
    27,986.61x = 42,002.40 × 13,946.07
  4. Step 4: Simplify right side
    27,986.61x = 585,768,410.57
  5. Step 5: Solve for x
    x = 585,768,410.57/27,986.61
  6. Step 6: Final answer
    x = 20,930.31

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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.