Home / 30,068.40-41,528.66-20,491.77

Finding the Fourth Proportional to 30,068.40, 41,528.66 and 20,491.77

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Solution

The fourth proportional to 30,068.40, 41,528.66 and 20,491.77 is: 28,302.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.40 : 41,528.66 = 20,491.77 : x
  2. Step 2: Convert to fraction form
    30,068.40/41,528.66 = 20,491.77/x
  3. Step 3: Cross multiply
    30,068.40x = 41,528.66 × 20,491.77
  4. Step 4: Simplify right side
    30,068.40x = 850,995,749.13
  5. Step 5: Solve for x
    x = 850,995,749.13/30,068.40
  6. Step 6: Final answer
    x = 28,302.00

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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.