Home / 30,642.05-42,287.84-23,075.03

Finding the Fourth Proportional to 30,642.05, 42,287.84 and 23,075.03

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Solution

The fourth proportional to 30,642.05, 42,287.84 and 23,075.03 is: 31,844.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,642.05 : 42,287.84 = 23,075.03 : x
  2. Step 2: Convert to fraction form
    30,642.05/42,287.84 = 23,075.03/x
  3. Step 3: Cross multiply
    30,642.05x = 42,287.84 × 23,075.03
  4. Step 4: Simplify right side
    30,642.05x = 975,793,253.51
  5. Step 5: Solve for x
    x = 975,793,253.51/30,642.05
  6. Step 6: Final answer
    x = 31,844.91

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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.