Home / 20,074.04-30,111.06-9,678.50

Finding the Fourth Proportional to 20,074.04, 30,111.06 and 9,678.50

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Solution

The fourth proportional to 20,074.04, 30,111.06 and 9,678.50 is: 14,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.04 : 30,111.06 = 9,678.50 : x
  2. Step 2: Convert to fraction form
    20,074.04/30,111.06 = 9,678.50/x
  3. Step 3: Cross multiply
    20,074.04x = 30,111.06 × 9,678.50
  4. Step 4: Simplify right side
    20,074.04x = 291,429,894.21
  5. Step 5: Solve for x
    x = 291,429,894.21/20,074.04
  6. Step 6: Final answer
    x = 14,517.75

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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.