Home / 31,779.04-47,640.23-12,071.44

Finding the Fourth Proportional to 31,779.04, 47,640.23 and 12,071.44

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Solution

The fourth proportional to 31,779.04, 47,640.23 and 12,071.44 is: 18,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.04 : 47,640.23 = 12,071.44 : x
  2. Step 2: Convert to fraction form
    31,779.04/47,640.23 = 12,071.44/x
  3. Step 3: Cross multiply
    31,779.04x = 47,640.23 × 12,071.44
  4. Step 4: Simplify right side
    31,779.04x = 575,086,178.03
  5. Step 5: Solve for x
    x = 575,086,178.03/31,779.04
  6. Step 6: Final answer
    x = 18,096.40

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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.