Home / 28,154.93-42,200.19-13,342.86

Finding the Fourth Proportional to 28,154.93, 42,200.19 and 13,342.86

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Solution

The fourth proportional to 28,154.93, 42,200.19 and 13,342.86 is: 19,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,154.93 : 42,200.19 = 13,342.86 : x
  2. Step 2: Convert to fraction form
    28,154.93/42,200.19 = 13,342.86/x
  3. Step 3: Cross multiply
    28,154.93x = 42,200.19 × 13,342.86
  4. Step 4: Simplify right side
    28,154.93x = 563,071,227.14
  5. Step 5: Solve for x
    x = 563,071,227.14/28,154.93
  6. Step 6: Final answer
    x = 19,999.03

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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.