Home / 20,699.38-31,045.59-5,904.93

Finding the Fourth Proportional to 20,699.38, 31,045.59 and 5,904.93

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Solution

The fourth proportional to 20,699.38, 31,045.59 and 5,904.93 is: 8,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.38 : 31,045.59 = 5,904.93 : x
  2. Step 2: Convert to fraction form
    20,699.38/31,045.59 = 5,904.93/x
  3. Step 3: Cross multiply
    20,699.38x = 31,045.59 × 5,904.93
  4. Step 4: Simplify right side
    20,699.38x = 183,322,035.76
  5. Step 5: Solve for x
    x = 183,322,035.76/20,699.38
  6. Step 6: Final answer
    x = 8,856.40

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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.