Home / 26,315.81-39,404.86-21,026.51

Finding the Fourth Proportional to 26,315.81, 39,404.86 and 21,026.51

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Solution

The fourth proportional to 26,315.81, 39,404.86 and 21,026.51 is: 31,484.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,315.81 : 39,404.86 = 21,026.51 : x
  2. Step 2: Convert to fraction form
    26,315.81/39,404.86 = 21,026.51/x
  3. Step 3: Cross multiply
    26,315.81x = 39,404.86 × 21,026.51
  4. Step 4: Simplify right side
    26,315.81x = 828,546,682.84
  5. Step 5: Solve for x
    x = 828,546,682.84/26,315.81
  6. Step 6: Final answer
    x = 31,484.75

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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.