Home / 42,203.63-63,317.75-12,623.77

Finding the Fourth Proportional to 42,203.63, 63,317.75 and 12,623.77

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Solution

The fourth proportional to 42,203.63, 63,317.75 and 12,623.77 is: 18,939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,203.63 : 63,317.75 = 12,623.77 : x
  2. Step 2: Convert to fraction form
    42,203.63/63,317.75 = 12,623.77/x
  3. Step 3: Cross multiply
    42,203.63x = 63,317.75 × 12,623.77
  4. Step 4: Simplify right side
    42,203.63x = 799,308,978.04
  5. Step 5: Solve for x
    x = 799,308,978.04/42,203.63
  6. Step 6: Final answer
    x = 18,939.34

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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.