Home / 39,103.78-58,663.88-16,920.32

Finding the Fourth Proportional to 39,103.78, 58,663.88 and 16,920.32

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Solution

The fourth proportional to 39,103.78, 58,663.88 and 16,920.32 is: 25,384.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,103.78 : 58,663.88 = 16,920.32 : x
  2. Step 2: Convert to fraction form
    39,103.78/58,663.88 = 16,920.32/x
  3. Step 3: Cross multiply
    39,103.78x = 58,663.88 × 16,920.32
  4. Step 4: Simplify right side
    39,103.78x = 992,611,622.04
  5. Step 5: Solve for x
    x = 992,611,622.04/39,103.78
  6. Step 6: Final answer
    x = 25,384.03

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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.