Home / 30,360.08-41,883.72-18,421.04

Finding the Fourth Proportional to 30,360.08, 41,883.72 and 18,421.04

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Solution

The fourth proportional to 30,360.08, 41,883.72 and 18,421.04 is: 25,413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.08 : 41,883.72 = 18,421.04 : x
  2. Step 2: Convert to fraction form
    30,360.08/41,883.72 = 18,421.04/x
  3. Step 3: Cross multiply
    30,360.08x = 41,883.72 × 18,421.04
  4. Step 4: Simplify right side
    30,360.08x = 771,541,681.47
  5. Step 5: Solve for x
    x = 771,541,681.47/30,360.08
  6. Step 6: Final answer
    x = 25,413.03

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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.