Home / 30,156.20-45,216.06-13,513.16

Finding the Fourth Proportional to 30,156.20, 45,216.06 and 13,513.16

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Solution

The fourth proportional to 30,156.20, 45,216.06 and 13,513.16 is: 20,261.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.20 : 45,216.06 = 13,513.16 : x
  2. Step 2: Convert to fraction form
    30,156.20/45,216.06 = 13,513.16/x
  3. Step 3: Cross multiply
    30,156.20x = 45,216.06 × 13,513.16
  4. Step 4: Simplify right side
    30,156.20x = 611,011,853.35
  5. Step 5: Solve for x
    x = 611,011,853.35/30,156.20
  6. Step 6: Final answer
    x = 20,261.57

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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.