Home / 31,364.10-47,070.30-18,225.72

Finding the Fourth Proportional to 31,364.10, 47,070.30 and 18,225.72

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Solution

The fourth proportional to 31,364.10, 47,070.30 and 18,225.72 is: 27,352.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,364.10 : 47,070.30 = 18,225.72 : x
  2. Step 2: Convert to fraction form
    31,364.10/47,070.30 = 18,225.72/x
  3. Step 3: Cross multiply
    31,364.10x = 47,070.30 × 18,225.72
  4. Step 4: Simplify right side
    31,364.10x = 857,890,108.12
  5. Step 5: Solve for x
    x = 857,890,108.12/31,364.10
  6. Step 6: Final answer
    x = 27,352.61

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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.