Home / 31,430.24-47,145.36-8,056.88

Finding the Fourth Proportional to 31,430.24, 47,145.36 and 8,056.88

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Solution

The fourth proportional to 31,430.24, 47,145.36 and 8,056.88 is: 12,085.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,430.24 : 47,145.36 = 8,056.88 : x
  2. Step 2: Convert to fraction form
    31,430.24/47,145.36 = 8,056.88/x
  3. Step 3: Cross multiply
    31,430.24x = 47,145.36 × 8,056.88
  4. Step 4: Simplify right side
    31,430.24x = 379,844,508.08
  5. Step 5: Solve for x
    x = 379,844,508.08/31,430.24
  6. Step 6: Final answer
    x = 12,085.32

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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.