Home / 25,642.68-38,362.86-19,420.67

Finding the Fourth Proportional to 25,642.68, 38,362.86 and 19,420.67

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Solution

The fourth proportional to 25,642.68, 38,362.86 and 19,420.67 is: 29,054.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,642.68 : 38,362.86 = 19,420.67 : x
  2. Step 2: Convert to fraction form
    25,642.68/38,362.86 = 19,420.67/x
  3. Step 3: Cross multiply
    25,642.68x = 38,362.86 × 19,420.67
  4. Step 4: Simplify right side
    25,642.68x = 745,032,252.50
  5. Step 5: Solve for x
    x = 745,032,252.50/25,642.68
  6. Step 6: Final answer
    x = 29,054.38

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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.