Home / 48,031.84-72,039.36-21,730.40

Finding the Fourth Proportional to 48,031.84, 72,039.36 and 21,730.40

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Solution

The fourth proportional to 48,031.84, 72,039.36 and 21,730.40 is: 32,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,031.84 : 72,039.36 = 21,730.40 : x
  2. Step 2: Convert to fraction form
    48,031.84/72,039.36 = 21,730.40/x
  3. Step 3: Cross multiply
    48,031.84x = 72,039.36 × 21,730.40
  4. Step 4: Simplify right side
    48,031.84x = 1,565,444,108.54
  5. Step 5: Solve for x
    x = 1,565,444,108.54/48,031.84
  6. Step 6: Final answer
    x = 32,591.80

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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.