Home / 30,798.06-42,507.92-19,460.36

Finding the Fourth Proportional to 30,798.06, 42,507.92 and 19,460.36

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Solution

The fourth proportional to 30,798.06, 42,507.92 and 19,460.36 is: 26,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,798.06 : 42,507.92 = 19,460.36 : x
  2. Step 2: Convert to fraction form
    30,798.06/42,507.92 = 19,460.36/x
  3. Step 3: Cross multiply
    30,798.06x = 42,507.92 × 19,460.36
  4. Step 4: Simplify right side
    30,798.06x = 827,219,116.21
  5. Step 5: Solve for x
    x = 827,219,116.21/30,798.06
  6. Step 6: Final answer
    x = 26,859.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.