Home / 28,300.13-42,456.36-10,528.02

Finding the Fourth Proportional to 28,300.13, 42,456.36 and 10,528.02

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Solution

The fourth proportional to 28,300.13, 42,456.36 and 10,528.02 is: 15,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,300.13 : 42,456.36 = 10,528.02 : x
  2. Step 2: Convert to fraction form
    28,300.13/42,456.36 = 10,528.02/x
  3. Step 3: Cross multiply
    28,300.13x = 42,456.36 × 10,528.02
  4. Step 4: Simplify right side
    28,300.13x = 446,981,407.21
  5. Step 5: Solve for x
    x = 446,981,407.21/28,300.13
  6. Step 6: Final answer
    x = 15,794.32

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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.