Home / 30,592.80-42,173.38-21,624.48

Finding the Fourth Proportional to 30,592.80, 42,173.38 and 21,624.48

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Solution

The fourth proportional to 30,592.80, 42,173.38 and 21,624.48 is: 29,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,592.80 : 42,173.38 = 21,624.48 : x
  2. Step 2: Convert to fraction form
    30,592.80/42,173.38 = 21,624.48/x
  3. Step 3: Cross multiply
    30,592.80x = 42,173.38 × 21,624.48
  4. Step 4: Simplify right side
    30,592.80x = 911,977,412.34
  5. Step 5: Solve for x
    x = 911,977,412.34/30,592.80
  6. Step 6: Final answer
    x = 29,810.20

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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.