Home / 18,690.32-28,030.62-5,539.16

Finding the Fourth Proportional to 18,690.32, 28,030.62 and 5,539.16

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Solution

The fourth proportional to 18,690.32, 28,030.62 and 5,539.16 is: 8,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.32 : 28,030.62 = 5,539.16 : x
  2. Step 2: Convert to fraction form
    18,690.32/28,030.62 = 5,539.16/x
  3. Step 3: Cross multiply
    18,690.32x = 28,030.62 × 5,539.16
  4. Step 4: Simplify right side
    18,690.32x = 155,266,089.08
  5. Step 5: Solve for x
    x = 155,266,089.08/18,690.32
  6. Step 6: Final answer
    x = 8,307.30

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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.