Home / 31,344.64-43,243.68-19,075.84

Finding the Fourth Proportional to 31,344.64, 43,243.68 and 19,075.84

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Solution

The fourth proportional to 31,344.64, 43,243.68 and 19,075.84 is: 26,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,344.64 : 43,243.68 = 19,075.84 : x
  2. Step 2: Convert to fraction form
    31,344.64/43,243.68 = 19,075.84/x
  3. Step 3: Cross multiply
    31,344.64x = 43,243.68 × 19,075.84
  4. Step 4: Simplify right side
    31,344.64x = 824,909,520.69
  5. Step 5: Solve for x
    x = 824,909,520.69/31,344.64
  6. Step 6: Final answer
    x = 26,317.40

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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.