Home / 30,203.18-45,319.65-13,575.30

Finding the Fourth Proportional to 30,203.18, 45,319.65 and 13,575.30

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Solution

The fourth proportional to 30,203.18, 45,319.65 and 13,575.30 is: 20,369.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,203.18 : 45,319.65 = 13,575.30 : x
  2. Step 2: Convert to fraction form
    30,203.18/45,319.65 = 13,575.30/x
  3. Step 3: Cross multiply
    30,203.18x = 45,319.65 × 13,575.30
  4. Step 4: Simplify right side
    30,203.18x = 615,227,700.15
  5. Step 5: Solve for x
    x = 615,227,700.15/30,203.18
  6. Step 6: Final answer
    x = 20,369.63

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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.