Home / 31,319.28-46,967.64-9,128.22

Finding the Fourth Proportional to 31,319.28, 46,967.64 and 9,128.22

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Solution

The fourth proportional to 31,319.28, 46,967.64 and 9,128.22 is: 13,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.28 : 46,967.64 = 9,128.22 : x
  2. Step 2: Convert to fraction form
    31,319.28/46,967.64 = 9,128.22/x
  3. Step 3: Cross multiply
    31,319.28x = 46,967.64 × 9,128.22
  4. Step 4: Simplify right side
    31,319.28x = 428,730,950.80
  5. Step 5: Solve for x
    x = 428,730,950.80/31,319.28
  6. Step 6: Final answer
    x = 13,689.04

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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.