Home / 35,307.90-53,154.23-30,486.78

Finding the Fourth Proportional to 35,307.90, 53,154.23 and 30,486.78

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Solution

The fourth proportional to 35,307.90, 53,154.23 and 30,486.78 is: 45,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,307.90 : 53,154.23 = 30,486.78 : x
  2. Step 2: Convert to fraction form
    35,307.90/53,154.23 = 30,486.78/x
  3. Step 3: Cross multiply
    35,307.90x = 53,154.23 × 30,486.78
  4. Step 4: Simplify right side
    35,307.90x = 1,620,501,163.65
  5. Step 5: Solve for x
    x = 1,620,501,163.65/35,307.90
  6. Step 6: Final answer
    x = 45,896.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.