Home / 19,269.60-26,561.28-15,726.72

Finding the Fourth Proportional to 19,269.60, 26,561.28 and 15,726.72

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Solution

The fourth proportional to 19,269.60, 26,561.28 and 15,726.72 is: 21,677.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,269.60 : 26,561.28 = 15,726.72 : x
  2. Step 2: Convert to fraction form
    19,269.60/26,561.28 = 15,726.72/x
  3. Step 3: Cross multiply
    19,269.60x = 26,561.28 × 15,726.72
  4. Step 4: Simplify right side
    19,269.60x = 417,721,813.40
  5. Step 5: Solve for x
    x = 417,721,813.40/19,269.60
  6. Step 6: Final answer
    x = 21,677.76

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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.