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Finding the Fourth Proportional to 26,428.71, 39,643.07 and 8,897.07

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Solution

The fourth proportional to 26,428.71, 39,643.07 and 8,897.07 is: 13,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,428.71 : 39,643.07 = 8,897.07 : x
  2. Step 2: Convert to fraction form
    26,428.71/39,643.07 = 8,897.07/x
  3. Step 3: Cross multiply
    26,428.71x = 39,643.07 × 8,897.07
  4. Step 4: Simplify right side
    26,428.71x = 352,707,124.32
  5. Step 5: Solve for x
    x = 352,707,124.32/26,428.71
  6. Step 6: Final answer
    x = 13,345.61

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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.