Home / 19,078.72-28,622.93-5,931.20

Finding the Fourth Proportional to 19,078.72, 28,622.93 and 5,931.20

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Solution

The fourth proportional to 19,078.72, 28,622.93 and 5,931.20 is: 8,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.72 : 28,622.93 = 5,931.20 : x
  2. Step 2: Convert to fraction form
    19,078.72/28,622.93 = 5,931.20/x
  3. Step 3: Cross multiply
    19,078.72x = 28,622.93 × 5,931.20
  4. Step 4: Simplify right side
    19,078.72x = 169,768,322.42
  5. Step 5: Solve for x
    x = 169,768,322.42/19,078.72
  6. Step 6: Final answer
    x = 8,898.31

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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.