Home / 26,010.47-38,985.90-12,690.41

Finding the Fourth Proportional to 26,010.47, 38,985.90 and 12,690.41

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Solution

The fourth proportional to 26,010.47, 38,985.90 and 12,690.41 is: 19,021.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,010.47 : 38,985.90 = 12,690.41 : x
  2. Step 2: Convert to fraction form
    26,010.47/38,985.90 = 12,690.41/x
  3. Step 3: Cross multiply
    26,010.47x = 38,985.90 × 12,690.41
  4. Step 4: Simplify right side
    26,010.47x = 494,747,055.22
  5. Step 5: Solve for x
    x = 494,747,055.22/26,010.47
  6. Step 6: Final answer
    x = 19,021.07

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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.