Home / 19,630.04-29,428.52-8,528.40

Finding the Fourth Proportional to 19,630.04, 29,428.52 and 8,528.40

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Solution

The fourth proportional to 19,630.04, 29,428.52 and 8,528.40 is: 12,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.04 : 29,428.52 = 8,528.40 : x
  2. Step 2: Convert to fraction form
    19,630.04/29,428.52 = 8,528.40/x
  3. Step 3: Cross multiply
    19,630.04x = 29,428.52 × 8,528.40
  4. Step 4: Simplify right side
    19,630.04x = 250,978,189.97
  5. Step 5: Solve for x
    x = 250,978,189.97/19,630.04
  6. Step 6: Final answer
    x = 12,785.41

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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.