Home / 21,317.81-31,975.57-6,526.74

Finding the Fourth Proportional to 21,317.81, 31,975.57 and 6,526.74

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Solution

The fourth proportional to 21,317.81, 31,975.57 and 6,526.74 is: 9,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.81 : 31,975.57 = 6,526.74 : x
  2. Step 2: Convert to fraction form
    21,317.81/31,975.57 = 6,526.74/x
  3. Step 3: Cross multiply
    21,317.81x = 31,975.57 × 6,526.74
  4. Step 4: Simplify right side
    21,317.81x = 208,696,231.74
  5. Step 5: Solve for x
    x = 208,696,231.74/21,317.81
  6. Step 6: Final answer
    x = 9,789.76

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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.