Home / 30,504.09-42,090.08-17,075.55

Finding the Fourth Proportional to 30,504.09, 42,090.08 and 17,075.55

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Solution

The fourth proportional to 30,504.09, 42,090.08 and 17,075.55 is: 23,561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,504.09 : 42,090.08 = 17,075.55 : x
  2. Step 2: Convert to fraction form
    30,504.09/42,090.08 = 17,075.55/x
  3. Step 3: Cross multiply
    30,504.09x = 42,090.08 × 17,075.55
  4. Step 4: Simplify right side
    30,504.09x = 718,711,180.17
  5. Step 5: Solve for x
    x = 718,711,180.17/30,504.09
  6. Step 6: Final answer
    x = 23,561.14

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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.