Home / 19,032.75-26,276.72-12,420.27

Finding the Fourth Proportional to 19,032.75, 26,276.72 and 12,420.27

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Solution

The fourth proportional to 19,032.75, 26,276.72 and 12,420.27 is: 17,147.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,032.75 : 26,276.72 = 12,420.27 : x
  2. Step 2: Convert to fraction form
    19,032.75/26,276.72 = 12,420.27/x
  3. Step 3: Cross multiply
    19,032.75x = 26,276.72 × 12,420.27
  4. Step 4: Simplify right side
    19,032.75x = 326,363,895.01
  5. Step 5: Solve for x
    x = 326,363,895.01/19,032.75
  6. Step 6: Final answer
    x = 17,147.49

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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.