Home / 21,017.40-31,527.72-6,226.08

Finding the Fourth Proportional to 21,017.40, 31,527.72 and 6,226.08

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Solution

The fourth proportional to 21,017.40, 31,527.72 and 6,226.08 is: 9,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.40 : 31,527.72 = 6,226.08 : x
  2. Step 2: Convert to fraction form
    21,017.40/31,527.72 = 6,226.08/x
  3. Step 3: Cross multiply
    21,017.40x = 31,527.72 × 6,226.08
  4. Step 4: Simplify right side
    21,017.40x = 196,294,106.94
  5. Step 5: Solve for x
    x = 196,294,106.94/21,017.40
  6. Step 6: Final answer
    x = 9,339.60

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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.