Home / 30,677.44-42,316.80-19,326.91

Finding the Fourth Proportional to 30,677.44, 42,316.80 and 19,326.91

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Solution

The fourth proportional to 30,677.44, 42,316.80 and 19,326.91 is: 26,659.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,677.44 : 42,316.80 = 19,326.91 : x
  2. Step 2: Convert to fraction form
    30,677.44/42,316.80 = 19,326.91/x
  3. Step 3: Cross multiply
    30,677.44x = 42,316.80 × 19,326.91
  4. Step 4: Simplify right side
    30,677.44x = 817,852,985.09
  5. Step 5: Solve for x
    x = 817,852,985.09/30,677.44
  6. Step 6: Final answer
    x = 26,659.75

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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.