Home / 21,369.12-32,055.04-8,221.48

Finding the Fourth Proportional to 21,369.12, 32,055.04 and 8,221.48

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Solution

The fourth proportional to 21,369.12, 32,055.04 and 8,221.48 is: 12,332.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,369.12 : 32,055.04 = 8,221.48 : x
  2. Step 2: Convert to fraction form
    21,369.12/32,055.04 = 8,221.48/x
  3. Step 3: Cross multiply
    21,369.12x = 32,055.04 × 8,221.48
  4. Step 4: Simplify right side
    21,369.12x = 263,539,870.26
  5. Step 5: Solve for x
    x = 263,539,870.26/21,369.12
  6. Step 6: Final answer
    x = 12,332.74

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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.