Home / 42,019.12-63,030.40-19,550.88

Finding the Fourth Proportional to 42,019.12, 63,030.40 and 19,550.88

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Solution

The fourth proportional to 42,019.12, 63,030.40 and 19,550.88 is: 29,327.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,019.12 : 63,030.40 = 19,550.88 : x
  2. Step 2: Convert to fraction form
    42,019.12/63,030.40 = 19,550.88/x
  3. Step 3: Cross multiply
    42,019.12x = 63,030.40 × 19,550.88
  4. Step 4: Simplify right side
    42,019.12x = 1,232,299,786.75
  5. Step 5: Solve for x
    x = 1,232,299,786.75/42,019.12
  6. Step 6: Final answer
    x = 29,327.12

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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.