Home / 39,402.86-54,376.11-21,498.23

Finding the Fourth Proportional to 39,402.86, 54,376.11 and 21,498.23

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Solution

The fourth proportional to 39,402.86, 54,376.11 and 21,498.23 is: 29,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,402.86 : 54,376.11 = 21,498.23 : x
  2. Step 2: Convert to fraction form
    39,402.86/54,376.11 = 21,498.23/x
  3. Step 3: Cross multiply
    39,402.86x = 54,376.11 × 21,498.23
  4. Step 4: Simplify right side
    39,402.86x = 1,168,989,847.40
  5. Step 5: Solve for x
    x = 1,168,989,847.40/39,402.86
  6. Step 6: Final answer
    x = 29,667.64

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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.