Home / 31,120.41-42,946.43-16,973.22

Finding the Fourth Proportional to 31,120.41, 42,946.43 and 16,973.22

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Solution

The fourth proportional to 31,120.41, 42,946.43 and 16,973.22 is: 23,423.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.41 : 42,946.43 = 16,973.22 : x
  2. Step 2: Convert to fraction form
    31,120.41/42,946.43 = 16,973.22/x
  3. Step 3: Cross multiply
    31,120.41x = 42,946.43 × 16,973.22
  4. Step 4: Simplify right side
    31,120.41x = 728,939,119.74
  5. Step 5: Solve for x
    x = 728,939,119.74/31,120.41
  6. Step 6: Final answer
    x = 23,423.18

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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.