Home / 18,880.02-28,281.15-11,070

Finding the Fourth Proportional to 18,880.02, 28,281.15 and 11,070

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Solution

The fourth proportional to 18,880.02, 28,281.15 and 11,070 is: 16,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.02 : 28,281.15 = 11,070 : x
  2. Step 2: Convert to fraction form
    18,880.02/28,281.15 = 11,070/x
  3. Step 3: Cross multiply
    18,880.02x = 28,281.15 × 11,070
  4. Step 4: Simplify right side
    18,880.02x = 313,072,330.50
  5. Step 5: Solve for x
    x = 313,072,330.50/18,880.02
  6. Step 6: Final answer
    x = 16,582.20

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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.