Home / 30,543.06-42,151.86-17,970.24

Finding the Fourth Proportional to 30,543.06, 42,151.86 and 17,970.24

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Solution

The fourth proportional to 30,543.06, 42,151.86 and 17,970.24 is: 24,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,543.06 : 42,151.86 = 17,970.24 : x
  2. Step 2: Convert to fraction form
    30,543.06/42,151.86 = 17,970.24/x
  3. Step 3: Cross multiply
    30,543.06x = 42,151.86 × 17,970.24
  4. Step 4: Simplify right side
    30,543.06x = 757,479,040.65
  5. Step 5: Solve for x
    x = 757,479,040.65/30,543.06
  6. Step 6: Final answer
    x = 24,800.37

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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.