Home / 28,145.67-42,223.62-13,354.45

Finding the Fourth Proportional to 28,145.67, 42,223.62 and 13,354.45

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Solution

The fourth proportional to 28,145.67, 42,223.62 and 13,354.45 is: 20,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.67 : 42,223.62 = 13,354.45 : x
  2. Step 2: Convert to fraction form
    28,145.67/42,223.62 = 13,354.45/x
  3. Step 3: Cross multiply
    28,145.67x = 42,223.62 × 13,354.45
  4. Step 4: Simplify right side
    28,145.67x = 563,873,222.11
  5. Step 5: Solve for x
    x = 563,873,222.11/28,145.67
  6. Step 6: Final answer
    x = 20,034.10

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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.