Home / 28,001.03-42,007.68-20,582.99

Finding the Fourth Proportional to 28,001.03, 42,007.68 and 20,582.99

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Solution

The fourth proportional to 28,001.03, 42,007.68 and 20,582.99 is: 30,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.03 : 42,007.68 = 20,582.99 : x
  2. Step 2: Convert to fraction form
    28,001.03/42,007.68 = 20,582.99/x
  3. Step 3: Cross multiply
    28,001.03x = 42,007.68 × 20,582.99
  4. Step 4: Simplify right side
    28,001.03x = 864,643,657.36
  5. Step 5: Solve for x
    x = 864,643,657.36/28,001.03
  6. Step 6: Final answer
    x = 30,879.00

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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.