Home / 18,880.08-28,281.24-11,070.06

Finding the Fourth Proportional to 18,880.08, 28,281.24 and 11,070.06

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Solution

The fourth proportional to 18,880.08, 28,281.24 and 11,070.06 is: 16,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.08 : 28,281.24 = 11,070.06 : x
  2. Step 2: Convert to fraction form
    18,880.08/28,281.24 = 11,070.06/x
  3. Step 3: Cross multiply
    18,880.08x = 28,281.24 × 11,070.06
  4. Step 4: Simplify right side
    18,880.08x = 313,075,023.67
  5. Step 5: Solve for x
    x = 313,075,023.67/18,880.08
  6. Step 6: Final answer
    x = 16,582.29

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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.