Home / 28,225.16-42,330.41-13,404.59

Finding the Fourth Proportional to 28,225.16, 42,330.41 and 13,404.59

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Solution

The fourth proportional to 28,225.16, 42,330.41 and 13,404.59 is: 20,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.16 : 42,330.41 = 13,404.59 : x
  2. Step 2: Convert to fraction form
    28,225.16/42,330.41 = 13,404.59/x
  3. Step 3: Cross multiply
    28,225.16x = 42,330.41 × 13,404.59
  4. Step 4: Simplify right side
    28,225.16x = 567,421,511.91
  5. Step 5: Solve for x
    x = 567,421,511.91/28,225.16
  6. Step 6: Final answer
    x = 20,103.40

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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.