Home / 35,615.07-49,146.20-19,699.78

Finding the Fourth Proportional to 35,615.07, 49,146.20 and 19,699.78

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Solution

The fourth proportional to 35,615.07, 49,146.20 and 19,699.78 is: 27,184.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,615.07 : 49,146.20 = 19,699.78 : x
  2. Step 2: Convert to fraction form
    35,615.07/49,146.20 = 19,699.78/x
  3. Step 3: Cross multiply
    35,615.07x = 49,146.20 × 19,699.78
  4. Step 4: Simplify right side
    35,615.07x = 968,169,364.64
  5. Step 5: Solve for x
    x = 968,169,364.64/35,615.07
  6. Step 6: Final answer
    x = 27,184.26

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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.