Home / 21,015.34-31,527.62-6,225.40

Finding the Fourth Proportional to 21,015.34, 31,527.62 and 6,225.40

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Solution

The fourth proportional to 21,015.34, 31,527.62 and 6,225.40 is: 9,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.34 : 31,527.62 = 6,225.40 : x
  2. Step 2: Convert to fraction form
    21,015.34/31,527.62 = 6,225.40/x
  3. Step 3: Cross multiply
    21,015.34x = 31,527.62 × 6,225.40
  4. Step 4: Simplify right side
    21,015.34x = 196,272,045.55
  5. Step 5: Solve for x
    x = 196,272,045.55/21,015.34
  6. Step 6: Final answer
    x = 9,339.47

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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.