Home / 30,436.48-42,001.53-17,007.84

Finding the Fourth Proportional to 30,436.48, 42,001.53 and 17,007.84

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Solution

The fourth proportional to 30,436.48, 42,001.53 and 17,007.84 is: 23,470.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.48 : 42,001.53 = 17,007.84 : x
  2. Step 2: Convert to fraction form
    30,436.48/42,001.53 = 17,007.84/x
  3. Step 3: Cross multiply
    30,436.48x = 42,001.53 × 17,007.84
  4. Step 4: Simplify right side
    30,436.48x = 714,355,449.52
  5. Step 5: Solve for x
    x = 714,355,449.52/30,436.48
  6. Step 6: Final answer
    x = 23,470.37

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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.