Home / 30,383.07-45,597.65-21,088.23

Finding the Fourth Proportional to 30,383.07, 45,597.65 and 21,088.23

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Solution

The fourth proportional to 30,383.07, 45,597.65 and 21,088.23 is: 31,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.07 : 45,597.65 = 21,088.23 : x
  2. Step 2: Convert to fraction form
    30,383.07/45,597.65 = 21,088.23/x
  3. Step 3: Cross multiply
    30,383.07x = 45,597.65 × 21,088.23
  4. Step 4: Simplify right side
    30,383.07x = 961,573,625.22
  5. Step 5: Solve for x
    x = 961,573,625.22/30,383.07
  6. Step 6: Final answer
    x = 31,648.34

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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.