Home / 26,133.12-39,108.96-21,398.40

Finding the Fourth Proportional to 26,133.12, 39,108.96 and 21,398.40

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Solution

The fourth proportional to 26,133.12, 39,108.96 and 21,398.40 is: 32,023.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,133.12 : 39,108.96 = 21,398.40 : x
  2. Step 2: Convert to fraction form
    26,133.12/39,108.96 = 21,398.40/x
  3. Step 3: Cross multiply
    26,133.12x = 39,108.96 × 21,398.40
  4. Step 4: Simplify right side
    26,133.12x = 836,869,169.66
  5. Step 5: Solve for x
    x = 836,869,169.66/26,133.12
  6. Step 6: Final answer
    x = 32,023.32

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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.