Home / 23,050.02-31,812.03-12,980.40

Finding the Fourth Proportional to 23,050.02, 31,812.03 and 12,980.40

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Solution

The fourth proportional to 23,050.02, 31,812.03 and 12,980.40 is: 17,914.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,050.02 : 31,812.03 = 12,980.40 : x
  2. Step 2: Convert to fraction form
    23,050.02/31,812.03 = 12,980.40/x
  3. Step 3: Cross multiply
    23,050.02x = 31,812.03 × 12,980.40
  4. Step 4: Simplify right side
    23,050.02x = 412,932,874.21
  5. Step 5: Solve for x
    x = 412,932,874.21/23,050.02
  6. Step 6: Final answer
    x = 17,914.64

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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.