Home / 30,035.86-41,459.32-21,085.56

Finding the Fourth Proportional to 30,035.86, 41,459.32 and 21,085.56

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Solution

The fourth proportional to 30,035.86, 41,459.32 and 21,085.56 is: 29,104.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,035.86 : 41,459.32 = 21,085.56 : x
  2. Step 2: Convert to fraction form
    30,035.86/41,459.32 = 21,085.56/x
  3. Step 3: Cross multiply
    30,035.86x = 41,459.32 × 21,085.56
  4. Step 4: Simplify right side
    30,035.86x = 874,192,926.71
  5. Step 5: Solve for x
    x = 874,192,926.71/30,035.86
  6. Step 6: Final answer
    x = 29,104.98

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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.