Home / 30,559.40-42,174.96-17,130.68

Finding the Fourth Proportional to 30,559.40, 42,174.96 and 17,130.68

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Solution

The fourth proportional to 30,559.40, 42,174.96 and 17,130.68 is: 23,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,559.40 : 42,174.96 = 17,130.68 : x
  2. Step 2: Convert to fraction form
    30,559.40/42,174.96 = 17,130.68/x
  3. Step 3: Cross multiply
    30,559.40x = 42,174.96 × 17,130.68
  4. Step 4: Simplify right side
    30,559.40x = 722,485,743.77
  5. Step 5: Solve for x
    x = 722,485,743.77/30,559.40
  6. Step 6: Final answer
    x = 23,642.01

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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.