Home / 35,486.55-53,220.75-10,520.77

Finding the Fourth Proportional to 35,486.55, 53,220.75 and 10,520.77

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Solution

The fourth proportional to 35,486.55, 53,220.75 and 10,520.77 is: 15,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,486.55 : 53,220.75 = 10,520.77 : x
  2. Step 2: Convert to fraction form
    35,486.55/53,220.75 = 10,520.77/x
  3. Step 3: Cross multiply
    35,486.55x = 53,220.75 × 10,520.77
  4. Step 4: Simplify right side
    35,486.55x = 559,923,269.98
  5. Step 5: Solve for x
    x = 559,923,269.98/35,486.55
  6. Step 6: Final answer
    x = 15,778.46

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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.