Home / 23,320.56-34,980.72-9,991.60

Finding the Fourth Proportional to 23,320.56, 34,980.72 and 9,991.60

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Solution

The fourth proportional to 23,320.56, 34,980.72 and 9,991.60 is: 14,987.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,320.56 : 34,980.72 = 9,991.60 : x
  2. Step 2: Convert to fraction form
    23,320.56/34,980.72 = 9,991.60/x
  3. Step 3: Cross multiply
    23,320.56x = 34,980.72 × 9,991.60
  4. Step 4: Simplify right side
    23,320.56x = 349,513,361.95
  5. Step 5: Solve for x
    x = 349,513,361.95/23,320.56
  6. Step 6: Final answer
    x = 14,987.35

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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.