Home / 30,969.36-42,737.73-16,822.50

Finding the Fourth Proportional to 30,969.36, 42,737.73 and 16,822.50

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Solution

The fourth proportional to 30,969.36, 42,737.73 and 16,822.50 is: 23,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,969.36 : 42,737.73 = 16,822.50 : x
  2. Step 2: Convert to fraction form
    30,969.36/42,737.73 = 16,822.50/x
  3. Step 3: Cross multiply
    30,969.36x = 42,737.73 × 16,822.50
  4. Step 4: Simplify right side
    30,969.36x = 718,955,462.93
  5. Step 5: Solve for x
    x = 718,955,462.93/30,969.36
  6. Step 6: Final answer
    x = 23,215.06

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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.