Home / 42,130.88-63,141.44-17,141.76

Finding the Fourth Proportional to 42,130.88, 63,141.44 and 17,141.76

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Solution

The fourth proportional to 42,130.88, 63,141.44 and 17,141.76 is: 25,690.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,130.88 : 63,141.44 = 17,141.76 : x
  2. Step 2: Convert to fraction form
    42,130.88/63,141.44 = 17,141.76/x
  3. Step 3: Cross multiply
    42,130.88x = 63,141.44 × 17,141.76
  4. Step 4: Simplify right side
    42,130.88x = 1,082,355,410.53
  5. Step 5: Solve for x
    x = 1,082,355,410.53/42,130.88
  6. Step 6: Final answer
    x = 25,690.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.