Home / 31,528.72-43,509.04-17,382.88

Finding the Fourth Proportional to 31,528.72, 43,509.04 and 17,382.88

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Solution

The fourth proportional to 31,528.72, 43,509.04 and 17,382.88 is: 23,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.72 : 43,509.04 = 17,382.88 : x
  2. Step 2: Convert to fraction form
    31,528.72/43,509.04 = 17,382.88/x
  3. Step 3: Cross multiply
    31,528.72x = 43,509.04 × 17,382.88
  4. Step 4: Simplify right side
    31,528.72x = 756,312,421.24
  5. Step 5: Solve for x
    x = 756,312,421.24/31,528.72
  6. Step 6: Final answer
    x = 23,988.05

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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.