Home / 23,420.47-35,128.42-12,887.02

Finding the Fourth Proportional to 23,420.47, 35,128.42 and 12,887.02

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Solution

The fourth proportional to 23,420.47, 35,128.42 and 12,887.02 is: 19,329.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.47 : 35,128.42 = 12,887.02 : x
  2. Step 2: Convert to fraction form
    23,420.47/35,128.42 = 12,887.02/x
  3. Step 3: Cross multiply
    23,420.47x = 35,128.42 × 12,887.02
  4. Step 4: Simplify right side
    23,420.47x = 452,700,651.11
  5. Step 5: Solve for x
    x = 452,700,651.11/23,420.47
  6. Step 6: Final answer
    x = 19,329.27

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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.