Home / 28,322.70-39,090.99-21,596.32

Finding the Fourth Proportional to 28,322.70, 39,090.99 and 21,596.32

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Solution

The fourth proportional to 28,322.70, 39,090.99 and 21,596.32 is: 29,807.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.70 : 39,090.99 = 21,596.32 : x
  2. Step 2: Convert to fraction form
    28,322.70/39,090.99 = 21,596.32/x
  3. Step 3: Cross multiply
    28,322.70x = 39,090.99 × 21,596.32
  4. Step 4: Simplify right side
    28,322.70x = 844,221,225.72
  5. Step 5: Solve for x
    x = 844,221,225.72/28,322.70
  6. Step 6: Final answer
    x = 29,807.23

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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.