Home / 30,250.24-41,742.48-28,021.12

Finding the Fourth Proportional to 30,250.24, 41,742.48 and 28,021.12

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Solution

The fourth proportional to 30,250.24, 41,742.48 and 28,021.12 is: 38,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.24 : 41,742.48 = 28,021.12 : x
  2. Step 2: Convert to fraction form
    30,250.24/41,742.48 = 28,021.12/x
  3. Step 3: Cross multiply
    30,250.24x = 41,742.48 × 28,021.12
  4. Step 4: Simplify right side
    30,250.24x = 1,169,671,041.18
  5. Step 5: Solve for x
    x = 1,169,671,041.18/30,250.24
  6. Step 6: Final answer
    x = 38,666.50

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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.