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Finding the Fourth Proportional to 15,871.80, 23,807.70 and 10,054.20

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Solution

The fourth proportional to 15,871.80, 23,807.70 and 10,054.20 is: 15,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.80 : 23,807.70 = 10,054.20 : x
  2. Step 2: Convert to fraction form
    15,871.80/23,807.70 = 10,054.20/x
  3. Step 3: Cross multiply
    15,871.80x = 23,807.70 × 10,054.20
  4. Step 4: Simplify right side
    15,871.80x = 239,367,377.34
  5. Step 5: Solve for x
    x = 239,367,377.34/15,871.80
  6. Step 6: Final answer
    x = 15,081.30

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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.