Home / 26,019.96-39,018.99-18,955.95

Finding the Fourth Proportional to 26,019.96, 39,018.99 and 18,955.95

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Solution

The fourth proportional to 26,019.96, 39,018.99 and 18,955.95 is: 28,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,019.96 : 39,018.99 = 18,955.95 : x
  2. Step 2: Convert to fraction form
    26,019.96/39,018.99 = 18,955.95/x
  3. Step 3: Cross multiply
    26,019.96x = 39,018.99 × 18,955.95
  4. Step 4: Simplify right side
    26,019.96x = 739,642,023.49
  5. Step 5: Solve for x
    x = 739,642,023.49/26,019.96
  6. Step 6: Final answer
    x = 28,425.95

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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.