Home / 35,347.78-52,990.08-13,145.68

Finding the Fourth Proportional to 35,347.78, 52,990.08 and 13,145.68

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Solution

The fourth proportional to 35,347.78, 52,990.08 and 13,145.68 is: 19,706.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,347.78 : 52,990.08 = 13,145.68 : x
  2. Step 2: Convert to fraction form
    35,347.78/52,990.08 = 13,145.68/x
  3. Step 3: Cross multiply
    35,347.78x = 52,990.08 × 13,145.68
  4. Step 4: Simplify right side
    35,347.78x = 696,590,634.85
  5. Step 5: Solve for x
    x = 696,590,634.85/35,347.78
  6. Step 6: Final answer
    x = 19,706.77

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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.