Home / 39,278.48-54,204.06-21,373.56

Finding the Fourth Proportional to 39,278.48, 54,204.06 and 21,373.56

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Solution

The fourth proportional to 39,278.48, 54,204.06 and 21,373.56 is: 29,495.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.48 : 54,204.06 = 21,373.56 : x
  2. Step 2: Convert to fraction form
    39,278.48/54,204.06 = 21,373.56/x
  3. Step 3: Cross multiply
    39,278.48x = 54,204.06 × 21,373.56
  4. Step 4: Simplify right side
    39,278.48x = 1,158,533,728.65
  5. Step 5: Solve for x
    x = 1,158,533,728.65/39,278.48
  6. Step 6: Final answer
    x = 29,495.38

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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.