Home / 20,582.81-30,870.63-5,788.22

Finding the Fourth Proportional to 20,582.81, 30,870.63 and 5,788.22

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Solution

The fourth proportional to 20,582.81, 30,870.63 and 5,788.22 is: 8,681.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.81 : 30,870.63 = 5,788.22 : x
  2. Step 2: Convert to fraction form
    20,582.81/30,870.63 = 5,788.22/x
  3. Step 3: Cross multiply
    20,582.81x = 30,870.63 × 5,788.22
  4. Step 4: Simplify right side
    20,582.81x = 178,685,997.98
  5. Step 5: Solve for x
    x = 178,685,997.98/20,582.81
  6. Step 6: Final answer
    x = 8,681.32

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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.