Home / 30,342.47-41,871.20-16,915.01

Finding the Fourth Proportional to 30,342.47, 41,871.20 and 16,915.01

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Solution

The fourth proportional to 30,342.47, 41,871.20 and 16,915.01 is: 23,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342.47 : 41,871.20 = 16,915.01 : x
  2. Step 2: Convert to fraction form
    30,342.47/41,871.20 = 16,915.01/x
  3. Step 3: Cross multiply
    30,342.47x = 41,871.20 × 16,915.01
  4. Step 4: Simplify right side
    30,342.47x = 708,251,599.64
  5. Step 5: Solve for x
    x = 708,251,599.64/30,342.47
  6. Step 6: Final answer
    x = 23,341.92

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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.