Home / 30,828.34-42,543.26-17,400.16

Finding the Fourth Proportional to 30,828.34, 42,543.26 and 17,400.16

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Solution

The fourth proportional to 30,828.34, 42,543.26 and 17,400.16 is: 24,012.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,828.34 : 42,543.26 = 17,400.16 : x
  2. Step 2: Convert to fraction form
    30,828.34/42,543.26 = 17,400.16/x
  3. Step 3: Cross multiply
    30,828.34x = 42,543.26 × 17,400.16
  4. Step 4: Simplify right side
    30,828.34x = 740,259,530.92
  5. Step 5: Solve for x
    x = 740,259,530.92/30,828.34
  6. Step 6: Final answer
    x = 24,012.31

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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.