Home / 28,008.63-38,650.10-15,433.38

Finding the Fourth Proportional to 28,008.63, 38,650.10 and 15,433.38

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Solution

The fourth proportional to 28,008.63, 38,650.10 and 15,433.38 is: 21,297.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.63 : 38,650.10 = 15,433.38 : x
  2. Step 2: Convert to fraction form
    28,008.63/38,650.10 = 15,433.38/x
  3. Step 3: Cross multiply
    28,008.63x = 38,650.10 × 15,433.38
  4. Step 4: Simplify right side
    28,008.63x = 596,501,603.17
  5. Step 5: Solve for x
    x = 596,501,603.17/28,008.63
  6. Step 6: Final answer
    x = 21,297.06

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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.