Home / 31,373.28-43,315.40-19,449.28

Finding the Fourth Proportional to 31,373.28, 43,315.40 and 19,449.28

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Solution

The fourth proportional to 31,373.28, 43,315.40 and 19,449.28 is: 26,852.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,373.28 : 43,315.40 = 19,449.28 : x
  2. Step 2: Convert to fraction form
    31,373.28/43,315.40 = 19,449.28/x
  3. Step 3: Cross multiply
    31,373.28x = 43,315.40 × 19,449.28
  4. Step 4: Simplify right side
    31,373.28x = 842,453,342.91
  5. Step 5: Solve for x
    x = 842,453,342.91/31,373.28
  6. Step 6: Final answer
    x = 26,852.57

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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.