Home / 30,908.48-42,653.40-16,761.08

Finding the Fourth Proportional to 30,908.48, 42,653.40 and 16,761.08

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Solution

The fourth proportional to 30,908.48, 42,653.40 and 16,761.08 is: 23,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,908.48 : 42,653.40 = 16,761.08 : x
  2. Step 2: Convert to fraction form
    30,908.48/42,653.40 = 16,761.08/x
  3. Step 3: Cross multiply
    30,908.48x = 42,653.40 × 16,761.08
  4. Step 4: Simplify right side
    30,908.48x = 714,917,049.67
  5. Step 5: Solve for x
    x = 714,917,049.67/30,908.48
  6. Step 6: Final answer
    x = 23,130.13

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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.