Home / 42,619.77-63,922.37-19,240.74

Finding the Fourth Proportional to 42,619.77, 63,922.37 and 19,240.74

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Solution

The fourth proportional to 42,619.77, 63,922.37 and 19,240.74 is: 28,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619.77 : 63,922.37 = 19,240.74 : x
  2. Step 2: Convert to fraction form
    42,619.77/63,922.37 = 19,240.74/x
  3. Step 3: Cross multiply
    42,619.77x = 63,922.37 × 19,240.74
  4. Step 4: Simplify right side
    42,619.77x = 1,229,913,605.15
  5. Step 5: Solve for x
    x = 1,229,913,605.15/42,619.77
  6. Step 6: Final answer
    x = 28,857.82

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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.