Home / 26,114.40-39,197.20-12,981.60

Finding the Fourth Proportional to 26,114.40, 39,197.20 and 12,981.60

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Solution

The fourth proportional to 26,114.40, 39,197.20 and 12,981.60 is: 19,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,114.40 : 39,197.20 = 12,981.60 : x
  2. Step 2: Convert to fraction form
    26,114.40/39,197.20 = 12,981.60/x
  3. Step 3: Cross multiply
    26,114.40x = 39,197.20 × 12,981.60
  4. Step 4: Simplify right side
    26,114.40x = 508,842,371.52
  5. Step 5: Solve for x
    x = 508,842,371.52/26,114.40
  6. Step 6: Final answer
    x = 19,485.13

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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.