Home / 42,409.80-58,505.48-28,999.84

Finding the Fourth Proportional to 42,409.80, 58,505.48 and 28,999.84

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Solution

The fourth proportional to 42,409.80, 58,505.48 and 28,999.84 is: 40,006.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,409.80 : 58,505.48 = 28,999.84 : x
  2. Step 2: Convert to fraction form
    42,409.80/58,505.48 = 28,999.84/x
  3. Step 3: Cross multiply
    42,409.80x = 58,505.48 × 28,999.84
  4. Step 4: Simplify right side
    42,409.80x = 1,696,649,559.12
  5. Step 5: Solve for x
    x = 1,696,649,559.12/42,409.80
  6. Step 6: Final answer
    x = 40,006.07

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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.