Home / 31,325.12-46,989.26-9,140.16

Finding the Fourth Proportional to 31,325.12, 46,989.26 and 9,140.16

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Solution

The fourth proportional to 31,325.12, 46,989.26 and 9,140.16 is: 13,710.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,325.12 : 46,989.26 = 9,140.16 : x
  2. Step 2: Convert to fraction form
    31,325.12/46,989.26 = 9,140.16/x
  3. Step 3: Cross multiply
    31,325.12x = 46,989.26 × 9,140.16
  4. Step 4: Simplify right side
    31,325.12x = 429,489,354.68
  5. Step 5: Solve for x
    x = 429,489,354.68/31,325.12
  6. Step 6: Final answer
    x = 13,710.70

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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.