Home / 39,208.42-54,108.12-21,303.70

Finding the Fourth Proportional to 39,208.42, 54,108.12 and 21,303.70

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Solution

The fourth proportional to 39,208.42, 54,108.12 and 21,303.70 is: 29,399.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,208.42 : 54,108.12 = 21,303.70 : x
  2. Step 2: Convert to fraction form
    39,208.42/54,108.12 = 21,303.70/x
  3. Step 3: Cross multiply
    39,208.42x = 54,108.12 × 21,303.70
  4. Step 4: Simplify right side
    39,208.42x = 1,152,703,156.04
  5. Step 5: Solve for x
    x = 1,152,703,156.04/39,208.42
  6. Step 6: Final answer
    x = 29,399.38

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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.