Home / 30,238.20-41,700.80-18,904.08

Finding the Fourth Proportional to 30,238.20, 41,700.80 and 18,904.08

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Solution

The fourth proportional to 30,238.20, 41,700.80 and 18,904.08 is: 26,070.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.20 : 41,700.80 = 18,904.08 : x
  2. Step 2: Convert to fraction form
    30,238.20/41,700.80 = 18,904.08/x
  3. Step 3: Cross multiply
    30,238.20x = 41,700.80 × 18,904.08
  4. Step 4: Simplify right side
    30,238.20x = 788,315,259.26
  5. Step 5: Solve for x
    x = 788,315,259.26/30,238.20
  6. Step 6: Final answer
    x = 26,070.18

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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.