Home / 42,329.36-63,503.60-21,279.49

Finding the Fourth Proportional to 42,329.36, 63,503.60 and 21,279.49

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Solution

The fourth proportional to 42,329.36, 63,503.60 and 21,279.49 is: 31,924.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,329.36 : 63,503.60 = 21,279.49 : x
  2. Step 2: Convert to fraction form
    42,329.36/63,503.60 = 21,279.49/x
  3. Step 3: Cross multiply
    42,329.36x = 63,503.60 × 21,279.49
  4. Step 4: Simplify right side
    42,329.36x = 1,351,323,956.01
  5. Step 5: Solve for x
    x = 1,351,323,956.01/42,329.36
  6. Step 6: Final answer
    x = 31,924.03

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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.