Home / 31,014.08-42,801.18-16,866.64

Finding the Fourth Proportional to 31,014.08, 42,801.18 and 16,866.64

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Solution

The fourth proportional to 31,014.08, 42,801.18 and 16,866.64 is: 23,276.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,014.08 : 42,801.18 = 16,866.64 : x
  2. Step 2: Convert to fraction form
    31,014.08/42,801.18 = 16,866.64/x
  3. Step 3: Cross multiply
    31,014.08x = 42,801.18 × 16,866.64
  4. Step 4: Simplify right side
    31,014.08x = 721,912,094.64
  5. Step 5: Solve for x
    x = 721,912,094.64/31,014.08
  6. Step 6: Final answer
    x = 23,276.91

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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.