Home / 28,990.40-43,484.18-16,989.24

Finding the Fourth Proportional to 28,990.40, 43,484.18 and 16,989.24

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Solution

The fourth proportional to 28,990.40, 43,484.18 and 16,989.24 is: 25,483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.40 : 43,484.18 = 16,989.24 : x
  2. Step 2: Convert to fraction form
    28,990.40/43,484.18 = 16,989.24/x
  3. Step 3: Cross multiply
    28,990.40x = 43,484.18 × 16,989.24
  4. Step 4: Simplify right side
    28,990.40x = 738,763,085.28
  5. Step 5: Solve for x
    x = 738,763,085.28/28,990.40
  6. Step 6: Final answer
    x = 25,483.03

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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.