Home / 28,482.32-39,309.48-21,396.44

Finding the Fourth Proportional to 28,482.32, 39,309.48 and 21,396.44

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Solution

The fourth proportional to 28,482.32, 39,309.48 and 21,396.44 is: 29,530.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,482.32 : 39,309.48 = 21,396.44 : x
  2. Step 2: Convert to fraction form
    28,482.32/39,309.48 = 21,396.44/x
  3. Step 3: Cross multiply
    28,482.32x = 39,309.48 × 21,396.44
  4. Step 4: Simplify right side
    28,482.32x = 841,083,028.52
  5. Step 5: Solve for x
    x = 841,083,028.52/28,482.32
  6. Step 6: Final answer
    x = 29,530.00

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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.