Home / 39,421.60-54,402.96-22,660

Finding the Fourth Proportional to 39,421.60, 54,402.96 and 22,660

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Solution

The fourth proportional to 39,421.60, 54,402.96 and 22,660 is: 31,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,421.60 : 54,402.96 = 22,660 : x
  2. Step 2: Convert to fraction form
    39,421.60/54,402.96 = 22,660/x
  3. Step 3: Cross multiply
    39,421.60x = 54,402.96 × 22,660
  4. Step 4: Simplify right side
    39,421.60x = 1,232,771,073.60
  5. Step 5: Solve for x
    x = 1,232,771,073.60/39,421.60
  6. Step 6: Final answer
    x = 31,271.46

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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.