Home / 42,009.88-63,020.58-18,635.80

Finding the Fourth Proportional to 42,009.88, 63,020.58 and 18,635.80

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Solution

The fourth proportional to 42,009.88, 63,020.58 and 18,635.80 is: 27,956.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009.88 : 63,020.58 = 18,635.80 : x
  2. Step 2: Convert to fraction form
    42,009.88/63,020.58 = 18,635.80/x
  3. Step 3: Cross multiply
    42,009.88x = 63,020.58 × 18,635.80
  4. Step 4: Simplify right side
    42,009.88x = 1,174,438,924.76
  5. Step 5: Solve for x
    x = 1,174,438,924.76/42,009.88
  6. Step 6: Final answer
    x = 27,956.26

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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.