Home / 39,358.99-54,316.27-21,454.89

Finding the Fourth Proportional to 39,358.99, 54,316.27 and 21,454.89

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Solution

The fourth proportional to 39,358.99, 54,316.27 and 21,454.89 is: 29,608.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358.99 : 54,316.27 = 21,454.89 : x
  2. Step 2: Convert to fraction form
    39,358.99/54,316.27 = 21,454.89/x
  3. Step 3: Cross multiply
    39,358.99x = 54,316.27 × 21,454.89
  4. Step 4: Simplify right side
    39,358.99x = 1,165,349,598.06
  5. Step 5: Solve for x
    x = 1,165,349,598.06/39,358.99
  6. Step 6: Final answer
    x = 29,608.22

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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.