Home / 20,369.64-28,101.42-14,071.08

Finding the Fourth Proportional to 20,369.64, 28,101.42 and 14,071.08

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Solution

The fourth proportional to 20,369.64, 28,101.42 and 14,071.08 is: 19,412.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.64 : 28,101.42 = 14,071.08 : x
  2. Step 2: Convert to fraction form
    20,369.64/28,101.42 = 14,071.08/x
  3. Step 3: Cross multiply
    20,369.64x = 28,101.42 × 14,071.08
  4. Step 4: Simplify right side
    20,369.64x = 395,417,328.93
  5. Step 5: Solve for x
    x = 395,417,328.93/20,369.64
  6. Step 6: Final answer
    x = 19,412.09

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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.