Home / 30,988.62-42,762.06-17,558.64

Finding the Fourth Proportional to 30,988.62, 42,762.06 and 17,558.64

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Solution

The fourth proportional to 30,988.62, 42,762.06 and 17,558.64 is: 24,229.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,988.62 : 42,762.06 = 17,558.64 : x
  2. Step 2: Convert to fraction form
    30,988.62/42,762.06 = 17,558.64/x
  3. Step 3: Cross multiply
    30,988.62x = 42,762.06 × 17,558.64
  4. Step 4: Simplify right side
    30,988.62x = 750,843,617.20
  5. Step 5: Solve for x
    x = 750,843,617.20/30,988.62
  6. Step 6: Final answer
    x = 24,229.66

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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.