Home / 38,632.99-57,971.40-20,863.45

Finding the Fourth Proportional to 38,632.99, 57,971.40 and 20,863.45

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Solution

The fourth proportional to 38,632.99, 57,971.40 and 20,863.45 is: 31,307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,632.99 : 57,971.40 = 20,863.45 : x
  2. Step 2: Convert to fraction form
    38,632.99/57,971.40 = 20,863.45/x
  3. Step 3: Cross multiply
    38,632.99x = 57,971.40 × 20,863.45
  4. Step 4: Simplify right side
    38,632.99x = 1,209,483,405.33
  5. Step 5: Solve for x
    x = 1,209,483,405.33/38,632.99
  6. Step 6: Final answer
    x = 31,307.01

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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.