Home / 25,108.91-34,650.75-13,779.51

Finding the Fourth Proportional to 25,108.91, 34,650.75 and 13,779.51

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Solution

The fourth proportional to 25,108.91, 34,650.75 and 13,779.51 is: 19,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,108.91 : 34,650.75 = 13,779.51 : x
  2. Step 2: Convert to fraction form
    25,108.91/34,650.75 = 13,779.51/x
  3. Step 3: Cross multiply
    25,108.91x = 34,650.75 × 13,779.51
  4. Step 4: Simplify right side
    25,108.91x = 477,470,356.13
  5. Step 5: Solve for x
    x = 477,470,356.13/25,108.91
  6. Step 6: Final answer
    x = 19,015.97

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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.