Home / 30,353.32-41,875.50-18,412.30

Finding the Fourth Proportional to 30,353.32, 41,875.50 and 18,412.30

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Solution

The fourth proportional to 30,353.32, 41,875.50 and 18,412.30 is: 25,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,353.32 : 41,875.50 = 18,412.30 : x
  2. Step 2: Convert to fraction form
    30,353.32/41,875.50 = 18,412.30/x
  3. Step 3: Cross multiply
    30,353.32x = 41,875.50 × 18,412.30
  4. Step 4: Simplify right side
    30,353.32x = 771,024,268.65
  5. Step 5: Solve for x
    x = 771,024,268.65/30,353.32
  6. Step 6: Final answer
    x = 25,401.65

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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.