Home / 42,018.80-63,038.25-12,033.45

Finding the Fourth Proportional to 42,018.80, 63,038.25 and 12,033.45

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Solution

The fourth proportional to 42,018.80, 63,038.25 and 12,033.45 is: 18,053.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,018.80 : 63,038.25 = 12,033.45 : x
  2. Step 2: Convert to fraction form
    42,018.80/63,038.25 = 12,033.45/x
  3. Step 3: Cross multiply
    42,018.80x = 63,038.25 × 12,033.45
  4. Step 4: Simplify right side
    42,018.80x = 758,567,629.46
  5. Step 5: Solve for x
    x = 758,567,629.46/42,018.80
  6. Step 6: Final answer
    x = 18,053.06

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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.