Home / 39,428.64-54,408.96-22,430.34

Finding the Fourth Proportional to 39,428.64, 54,408.96 and 22,430.34

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Solution

The fourth proportional to 39,428.64, 54,408.96 and 22,430.34 is: 30,952.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,428.64 : 54,408.96 = 22,430.34 : x
  2. Step 2: Convert to fraction form
    39,428.64/54,408.96 = 22,430.34/x
  3. Step 3: Cross multiply
    39,428.64x = 54,408.96 × 22,430.34
  4. Step 4: Simplify right side
    39,428.64x = 1,220,411,471.85
  5. Step 5: Solve for x
    x = 1,220,411,471.85/39,428.64
  6. Step 6: Final answer
    x = 30,952.41

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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.