Home / 21,015.90-31,525.47-6,224.58

Finding the Fourth Proportional to 21,015.90, 31,525.47 and 6,224.58

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Solution

The fourth proportional to 21,015.90, 31,525.47 and 6,224.58 is: 9,337.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.90 : 31,525.47 = 6,224.58 : x
  2. Step 2: Convert to fraction form
    21,015.90/31,525.47 = 6,224.58/x
  3. Step 3: Cross multiply
    21,015.90x = 31,525.47 × 6,224.58
  4. Step 4: Simplify right side
    21,015.90x = 196,232,810.05
  5. Step 5: Solve for x
    x = 196,232,810.05/21,015.90
  6. Step 6: Final answer
    x = 9,337.35

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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.