Home / 34,779.68-48,003.54-21,357.98

Finding the Fourth Proportional to 34,779.68, 48,003.54 and 21,357.98

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Solution

The fourth proportional to 34,779.68, 48,003.54 and 21,357.98 is: 29,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,779.68 : 48,003.54 = 21,357.98 : x
  2. Step 2: Convert to fraction form
    34,779.68/48,003.54 = 21,357.98/x
  3. Step 3: Cross multiply
    34,779.68x = 48,003.54 × 21,357.98
  4. Step 4: Simplify right side
    34,779.68x = 1,025,258,647.25
  5. Step 5: Solve for x
    x = 1,025,258,647.25/34,779.68
  6. Step 6: Final answer
    x = 29,478.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.