Home / 31,489.95-43,453.63-19,551.03

Finding the Fourth Proportional to 31,489.95, 43,453.63 and 19,551.03

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Solution

The fourth proportional to 31,489.95, 43,453.63 and 19,551.03 is: 26,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,489.95 : 43,453.63 = 19,551.03 : x
  2. Step 2: Convert to fraction form
    31,489.95/43,453.63 = 19,551.03/x
  3. Step 3: Cross multiply
    31,489.95x = 43,453.63 × 19,551.03
  4. Step 4: Simplify right side
    31,489.95x = 849,563,223.74
  5. Step 5: Solve for x
    x = 849,563,223.74/31,489.95
  6. Step 6: Final answer
    x = 26,978.87

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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.