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Finding the Fourth Proportional to 30,058.35, 41,478.80 and 16,628.80

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Solution

The fourth proportional to 30,058.35, 41,478.80 and 16,628.80 is: 22,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,058.35 : 41,478.80 = 16,628.80 : x
  2. Step 2: Convert to fraction form
    30,058.35/41,478.80 = 16,628.80/x
  3. Step 3: Cross multiply
    30,058.35x = 41,478.80 × 16,628.80
  4. Step 4: Simplify right side
    30,058.35x = 689,742,875.70
  5. Step 5: Solve for x
    x = 689,742,875.70/30,058.35
  6. Step 6: Final answer
    x = 22,946.80

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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.