Home / 31,356.18-43,271.64-17,209.80

Finding the Fourth Proportional to 31,356.18, 43,271.64 and 17,209.80

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Solution

The fourth proportional to 31,356.18, 43,271.64 and 17,209.80 is: 23,749.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.18 : 43,271.64 = 17,209.80 : x
  2. Step 2: Convert to fraction form
    31,356.18/43,271.64 = 17,209.80/x
  3. Step 3: Cross multiply
    31,356.18x = 43,271.64 × 17,209.80
  4. Step 4: Simplify right side
    31,356.18x = 744,696,270.07
  5. Step 5: Solve for x
    x = 744,696,270.07/31,356.18
  6. Step 6: Final answer
    x = 23,749.59

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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.