Home / 19,029.48-28,545.84-4,989.48

Finding the Fourth Proportional to 19,029.48, 28,545.84 and 4,989.48

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Solution

The fourth proportional to 19,029.48, 28,545.84 and 4,989.48 is: 7,484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,029.48 : 28,545.84 = 4,989.48 : x
  2. Step 2: Convert to fraction form
    19,029.48/28,545.84 = 4,989.48/x
  3. Step 3: Cross multiply
    19,029.48x = 28,545.84 × 4,989.48
  4. Step 4: Simplify right side
    19,029.48x = 142,428,897.76
  5. Step 5: Solve for x
    x = 142,428,897.76/19,029.48
  6. Step 6: Final answer
    x = 7,484.64

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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.