Home / 39,153.24-54,031.86-21,248.39

Finding the Fourth Proportional to 39,153.24, 54,031.86 and 21,248.39

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Solution

The fourth proportional to 39,153.24, 54,031.86 and 21,248.39 is: 29,322.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,153.24 : 54,031.86 = 21,248.39 : x
  2. Step 2: Convert to fraction form
    39,153.24/54,031.86 = 21,248.39/x
  3. Step 3: Cross multiply
    39,153.24x = 54,031.86 × 21,248.39
  4. Step 4: Simplify right side
    39,153.24x = 1,148,090,168.79
  5. Step 5: Solve for x
    x = 1,148,090,168.79/39,153.24
  6. Step 6: Final answer
    x = 29,322.99

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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.