Home / 23,317.40-34,980.60-9,990.20

Finding the Fourth Proportional to 23,317.40, 34,980.60 and 9,990.20

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Solution

The fourth proportional to 23,317.40, 34,980.60 and 9,990.20 is: 14,987.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,317.40 : 34,980.60 = 9,990.20 : x
  2. Step 2: Convert to fraction form
    23,317.40/34,980.60 = 9,990.20/x
  3. Step 3: Cross multiply
    23,317.40x = 34,980.60 × 9,990.20
  4. Step 4: Simplify right side
    23,317.40x = 349,463,190.12
  5. Step 5: Solve for x
    x = 349,463,190.12/23,317.40
  6. Step 6: Final answer
    x = 14,987.23

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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.