Home / 31,647.13-43,678.50-19,071.88

Finding the Fourth Proportional to 31,647.13, 43,678.50 and 19,071.88

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Solution

The fourth proportional to 31,647.13, 43,678.50 and 19,071.88 is: 26,322.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,647.13 : 43,678.50 = 19,071.88 : x
  2. Step 2: Convert to fraction form
    31,647.13/43,678.50 = 19,071.88/x
  3. Step 3: Cross multiply
    31,647.13x = 43,678.50 × 19,071.88
  4. Step 4: Simplify right side
    31,647.13x = 833,031,110.58
  5. Step 5: Solve for x
    x = 833,031,110.58/31,647.13
  6. Step 6: Final answer
    x = 26,322.49

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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.