Home / 21,014.60-31,521.77-6,223.60

Finding the Fourth Proportional to 21,014.60, 31,521.77 and 6,223.60

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Solution

The fourth proportional to 21,014.60, 31,521.77 and 6,223.60 is: 9,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.60 : 31,521.77 = 6,223.60 : x
  2. Step 2: Convert to fraction form
    21,014.60/31,521.77 = 6,223.60/x
  3. Step 3: Cross multiply
    21,014.60x = 31,521.77 × 6,223.60
  4. Step 4: Simplify right side
    21,014.60x = 196,178,699.05
  5. Step 5: Solve for x
    x = 196,178,699.05/21,014.60
  6. Step 6: Final answer
    x = 9,335.35

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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.