Home / 39,946.80-59,920.20-13,647.60

Finding the Fourth Proportional to 39,946.80, 59,920.20 and 13,647.60

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Solution

The fourth proportional to 39,946.80, 59,920.20 and 13,647.60 is: 20,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,946.80 : 59,920.20 = 13,647.60 : x
  2. Step 2: Convert to fraction form
    39,946.80/59,920.20 = 13,647.60/x
  3. Step 3: Cross multiply
    39,946.80x = 59,920.20 × 13,647.60
  4. Step 4: Simplify right side
    39,946.80x = 817,766,921.52
  5. Step 5: Solve for x
    x = 817,766,921.52/39,946.80
  6. Step 6: Final answer
    x = 20,471.40

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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.