Home / 30,074.48-45,122.18-13,432.89

Finding the Fourth Proportional to 30,074.48, 45,122.18 and 13,432.89

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Solution

The fourth proportional to 30,074.48, 45,122.18 and 13,432.89 is: 20,154.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,074.48 : 45,122.18 = 13,432.89 : x
  2. Step 2: Convert to fraction form
    30,074.48/45,122.18 = 13,432.89/x
  3. Step 3: Cross multiply
    30,074.48x = 45,122.18 × 13,432.89
  4. Step 4: Simplify right side
    30,074.48x = 606,121,213.34
  5. Step 5: Solve for x
    x = 606,121,213.34/30,074.48
  6. Step 6: Final answer
    x = 20,154.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.