Home / 57,618.90-86,434.11-20,674.26

Finding the Fourth Proportional to 57,618.90, 86,434.11 and 20,674.26

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Solution

The fourth proportional to 57,618.90, 86,434.11 and 20,674.26 is: 31,013.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,618.90 : 86,434.11 = 20,674.26 : x
  2. Step 2: Convert to fraction form
    57,618.90/86,434.11 = 20,674.26/x
  3. Step 3: Cross multiply
    57,618.90x = 86,434.11 × 20,674.26
  4. Step 4: Simplify right side
    57,618.90x = 1,786,961,263.01
  5. Step 5: Solve for x
    x = 1,786,961,263.01/57,618.90
  6. Step 6: Final answer
    x = 31,013.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.