Home / 19,042.40-28,569.43-8,521.27

Finding the Fourth Proportional to 19,042.40, 28,569.43 and 8,521.27

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Solution

The fourth proportional to 19,042.40, 28,569.43 and 8,521.27 is: 12,784.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,042.40 : 28,569.43 = 8,521.27 : x
  2. Step 2: Convert to fraction form
    19,042.40/28,569.43 = 8,521.27/x
  3. Step 3: Cross multiply
    19,042.40x = 28,569.43 × 8,521.27
  4. Step 4: Simplify right side
    19,042.40x = 243,447,826.78
  5. Step 5: Solve for x
    x = 243,447,826.78/19,042.40
  6. Step 6: Final answer
    x = 12,784.51

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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.