Home / 31,000.08-42,779.70-16,853.16

Finding the Fourth Proportional to 31,000.08, 42,779.70 and 16,853.16

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Solution

The fourth proportional to 31,000.08, 42,779.70 and 16,853.16 is: 23,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,000.08 : 42,779.70 = 16,853.16 : x
  2. Step 2: Convert to fraction form
    31,000.08/42,779.70 = 16,853.16/x
  3. Step 3: Cross multiply
    31,000.08x = 42,779.70 × 16,853.16
  4. Step 4: Simplify right side
    31,000.08x = 720,973,128.85
  5. Step 5: Solve for x
    x = 720,973,128.85/31,000.08
  6. Step 6: Final answer
    x = 23,257.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.