Home / 30,621.32-45,937.35-13,983.03

Finding the Fourth Proportional to 30,621.32, 45,937.35 and 13,983.03

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Solution

The fourth proportional to 30,621.32, 45,937.35 and 13,983.03 is: 20,977.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.32 : 45,937.35 = 13,983.03 : x
  2. Step 2: Convert to fraction form
    30,621.32/45,937.35 = 13,983.03/x
  3. Step 3: Cross multiply
    30,621.32x = 45,937.35 × 13,983.03
  4. Step 4: Simplify right side
    30,621.32x = 642,343,343.17
  5. Step 5: Solve for x
    x = 642,343,343.17/30,621.32
  6. Step 6: Final answer
    x = 20,977.00

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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.