Home / 19,271.20-28,874.40-9,389.20

Finding the Fourth Proportional to 19,271.20, 28,874.40 and 9,389.20

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Solution

The fourth proportional to 19,271.20, 28,874.40 and 9,389.20 is: 14,068.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,271.20 : 28,874.40 = 9,389.20 : x
  2. Step 2: Convert to fraction form
    19,271.20/28,874.40 = 9,389.20/x
  3. Step 3: Cross multiply
    19,271.20x = 28,874.40 × 9,389.20
  4. Step 4: Simplify right side
    19,271.20x = 271,107,516.48
  5. Step 5: Solve for x
    x = 271,107,516.48/19,271.20
  6. Step 6: Final answer
    x = 14,068.01

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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.