Home / 20,585.05-30,886.79-9,485.79

Finding the Fourth Proportional to 20,585.05, 30,886.79 and 9,485.79

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Solution

The fourth proportional to 20,585.05, 30,886.79 and 9,485.79 is: 14,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.05 : 30,886.79 = 9,485.79 : x
  2. Step 2: Convert to fraction form
    20,585.05/30,886.79 = 9,485.79/x
  3. Step 3: Cross multiply
    20,585.05x = 30,886.79 × 9,485.79
  4. Step 4: Simplify right side
    20,585.05x = 292,985,603.71
  5. Step 5: Solve for x
    x = 292,985,603.71/20,585.05
  6. Step 6: Final answer
    x = 14,232.93

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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.