Home / 21,032.32-31,452.56-15,699.28

Finding the Fourth Proportional to 21,032.32, 31,452.56 and 15,699.28

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Solution

The fourth proportional to 21,032.32, 31,452.56 and 15,699.28 is: 23,477.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.32 : 31,452.56 = 15,699.28 : x
  2. Step 2: Convert to fraction form
    21,032.32/31,452.56 = 15,699.28/x
  3. Step 3: Cross multiply
    21,032.32x = 31,452.56 × 15,699.28
  4. Step 4: Simplify right side
    21,032.32x = 493,782,546.16
  5. Step 5: Solve for x
    x = 493,782,546.16/21,032.32
  6. Step 6: Final answer
    x = 23,477.32

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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.