Home / 30,908.77-42,653.73-16,761.45

Finding the Fourth Proportional to 30,908.77, 42,653.73 and 16,761.45

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Solution

The fourth proportional to 30,908.77, 42,653.73 and 16,761.45 is: 23,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,908.77 : 42,653.73 = 16,761.45 : x
  2. Step 2: Convert to fraction form
    30,908.77/42,653.73 = 16,761.45/x
  3. Step 3: Cross multiply
    30,908.77x = 42,653.73 × 16,761.45
  4. Step 4: Simplify right side
    30,908.77x = 714,938,362.71
  5. Step 5: Solve for x
    x = 714,938,362.71/30,908.77
  6. Step 6: Final answer
    x = 23,130.60

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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.