Home / 28,802.13-43,220.20-12,161.08

Finding the Fourth Proportional to 28,802.13, 43,220.20 and 12,161.08

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Solution

The fourth proportional to 28,802.13, 43,220.20 and 12,161.08 is: 18,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802.13 : 43,220.20 = 12,161.08 : x
  2. Step 2: Convert to fraction form
    28,802.13/43,220.20 = 12,161.08/x
  3. Step 3: Cross multiply
    28,802.13x = 43,220.20 × 12,161.08
  4. Step 4: Simplify right side
    28,802.13x = 525,604,309.82
  5. Step 5: Solve for x
    x = 525,604,309.82/28,802.13
  6. Step 6: Final answer
    x = 18,248.80

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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.