Home / 30,988.52-42,754.66-17,557.64

Finding the Fourth Proportional to 30,988.52, 42,754.66 and 17,557.64

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Solution

The fourth proportional to 30,988.52, 42,754.66 and 17,557.64 is: 24,224.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,988.52 : 42,754.66 = 17,557.64 : x
  2. Step 2: Convert to fraction form
    30,988.52/42,754.66 = 17,557.64/x
  3. Step 3: Cross multiply
    30,988.52x = 42,754.66 × 17,557.64
  4. Step 4: Simplify right side
    30,988.52x = 750,670,928.60
  5. Step 5: Solve for x
    x = 750,670,928.60/30,988.52
  6. Step 6: Final answer
    x = 24,224.16

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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.