Home / 26,929.57-40,394.37-12,886.30

Finding the Fourth Proportional to 26,929.57, 40,394.37 and 12,886.30

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Solution

The fourth proportional to 26,929.57, 40,394.37 and 12,886.30 is: 19,329.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,929.57 : 40,394.37 = 12,886.30 : x
  2. Step 2: Convert to fraction form
    26,929.57/40,394.37 = 12,886.30/x
  3. Step 3: Cross multiply
    26,929.57x = 40,394.37 × 12,886.30
  4. Step 4: Simplify right side
    26,929.57x = 520,533,970.13
  5. Step 5: Solve for x
    x = 520,533,970.13/26,929.57
  6. Step 6: Final answer
    x = 19,329.46

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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.