Home / 31,073.14-42,903.03-19,140.22

Finding the Fourth Proportional to 31,073.14, 42,903.03 and 19,140.22

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Solution

The fourth proportional to 31,073.14, 42,903.03 and 19,140.22 is: 26,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,073.14 : 42,903.03 = 19,140.22 : x
  2. Step 2: Convert to fraction form
    31,073.14/42,903.03 = 19,140.22/x
  3. Step 3: Cross multiply
    31,073.14x = 42,903.03 × 19,140.22
  4. Step 4: Simplify right side
    31,073.14x = 821,173,432.87
  5. Step 5: Solve for x
    x = 821,173,432.87/31,073.14
  6. Step 6: Final answer
    x = 26,427.11

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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.