Home / 21,055.39-31,590.38-14,063.47

Finding the Fourth Proportional to 21,055.39, 31,590.38 and 14,063.47

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Solution

The fourth proportional to 21,055.39, 31,590.38 and 14,063.47 is: 21,100.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.39 : 31,590.38 = 14,063.47 : x
  2. Step 2: Convert to fraction form
    21,055.39/31,590.38 = 14,063.47/x
  3. Step 3: Cross multiply
    21,055.39x = 31,590.38 × 14,063.47
  4. Step 4: Simplify right side
    21,055.39x = 444,270,291.10
  5. Step 5: Solve for x
    x = 444,270,291.10/21,055.39
  6. Step 6: Final answer
    x = 21,100.07

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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.