Home / 19,289.31-26,611.41-12,572.58

Finding the Fourth Proportional to 19,289.31, 26,611.41 and 12,572.58

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Solution

The fourth proportional to 19,289.31, 26,611.41 and 12,572.58 is: 17,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.31 : 26,611.41 = 12,572.58 : x
  2. Step 2: Convert to fraction form
    19,289.31/26,611.41 = 12,572.58/x
  3. Step 3: Cross multiply
    19,289.31x = 26,611.41 × 12,572.58
  4. Step 4: Simplify right side
    19,289.31x = 334,574,081.14
  5. Step 5: Solve for x
    x = 334,574,081.14/19,289.31
  6. Step 6: Final answer
    x = 17,345.05

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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.