Home / 19,320.99-28,984.74-5,990.91

Finding the Fourth Proportional to 19,320.99, 28,984.74 and 5,990.91

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Solution

The fourth proportional to 19,320.99, 28,984.74 and 5,990.91 is: 8,987.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.99 : 28,984.74 = 5,990.91 : x
  2. Step 2: Convert to fraction form
    19,320.99/28,984.74 = 5,990.91/x
  3. Step 3: Cross multiply
    19,320.99x = 28,984.74 × 5,990.91
  4. Step 4: Simplify right side
    19,320.99x = 173,644,968.71
  5. Step 5: Solve for x
    x = 173,644,968.71/19,320.99
  6. Step 6: Final answer
    x = 8,987.37

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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.