Home / 21,559.10-32,330.57-7,515.51

Finding the Fourth Proportional to 21,559.10, 32,330.57 and 7,515.51

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Solution

The fourth proportional to 21,559.10, 32,330.57 and 7,515.51 is: 11,270.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.10 : 32,330.57 = 7,515.51 : x
  2. Step 2: Convert to fraction form
    21,559.10/32,330.57 = 7,515.51/x
  3. Step 3: Cross multiply
    21,559.10x = 32,330.57 × 7,515.51
  4. Step 4: Simplify right side
    21,559.10x = 242,980,684.56
  5. Step 5: Solve for x
    x = 242,980,684.56/21,559.10
  6. Step 6: Final answer
    x = 11,270.45

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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.