Home / 30,877.65-42,611.20-16,730.48

Finding the Fourth Proportional to 30,877.65, 42,611.20 and 16,730.48

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Solution

The fourth proportional to 30,877.65, 42,611.20 and 16,730.48 is: 23,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,877.65 : 42,611.20 = 16,730.48 : x
  2. Step 2: Convert to fraction form
    30,877.65/42,611.20 = 16,730.48/x
  3. Step 3: Cross multiply
    30,877.65x = 42,611.20 × 16,730.48
  4. Step 4: Simplify right side
    30,877.65x = 712,905,894.08
  5. Step 5: Solve for x
    x = 712,905,894.08/30,877.65
  6. Step 6: Final answer
    x = 23,088.09

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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.