Home / 19,289.28-26,609.64-15,032.72

Finding the Fourth Proportional to 19,289.28, 26,609.64 and 15,032.72

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Solution

The fourth proportional to 19,289.28, 26,609.64 and 15,032.72 is: 20,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.28 : 26,609.64 = 15,032.72 : x
  2. Step 2: Convert to fraction form
    19,289.28/26,609.64 = 15,032.72/x
  3. Step 3: Cross multiply
    19,289.28x = 26,609.64 × 15,032.72
  4. Step 4: Simplify right side
    19,289.28x = 400,015,267.42
  5. Step 5: Solve for x
    x = 400,015,267.42/19,289.28
  6. Step 6: Final answer
    x = 20,737.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.