Home / 31,790.46-43,870.86-17,643.30

Finding the Fourth Proportional to 31,790.46, 43,870.86 and 17,643.30

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Solution

The fourth proportional to 31,790.46, 43,870.86 and 17,643.30 is: 24,347.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,790.46 : 43,870.86 = 17,643.30 : x
  2. Step 2: Convert to fraction form
    31,790.46/43,870.86 = 17,643.30/x
  3. Step 3: Cross multiply
    31,790.46x = 43,870.86 × 17,643.30
  4. Step 4: Simplify right side
    31,790.46x = 774,026,744.24
  5. Step 5: Solve for x
    x = 774,026,744.24/31,790.46
  6. Step 6: Final answer
    x = 24,347.77

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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.