Home / 48,031.08-72,015.63-19,970.50

Finding the Fourth Proportional to 48,031.08, 72,015.63 and 19,970.50

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Solution

The fourth proportional to 48,031.08, 72,015.63 and 19,970.50 is: 29,942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,031.08 : 72,015.63 = 19,970.50 : x
  2. Step 2: Convert to fraction form
    48,031.08/72,015.63 = 19,970.50/x
  3. Step 3: Cross multiply
    48,031.08x = 72,015.63 × 19,970.50
  4. Step 4: Simplify right side
    48,031.08x = 1,438,188,131.35
  5. Step 5: Solve for x
    x = 1,438,188,131.35/48,031.08
  6. Step 6: Final answer
    x = 29,942.87

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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.