Home / 19,271.05-28,866.18-12,247.45

Finding the Fourth Proportional to 19,271.05, 28,866.18 and 12,247.45

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Solution

The fourth proportional to 19,271.05, 28,866.18 and 12,247.45 is: 18,345.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,271.05 : 28,866.18 = 12,247.45 : x
  2. Step 2: Convert to fraction form
    19,271.05/28,866.18 = 12,247.45/x
  3. Step 3: Cross multiply
    19,271.05x = 28,866.18 × 12,247.45
  4. Step 4: Simplify right side
    19,271.05x = 353,537,096.24
  5. Step 5: Solve for x
    x = 353,537,096.24/19,271.05
  6. Step 6: Final answer
    x = 18,345.50

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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.