Home / 30,476.21-42,055.20-17,045.15

Finding the Fourth Proportional to 30,476.21, 42,055.20 and 17,045.15

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Solution

The fourth proportional to 30,476.21, 42,055.20 and 17,045.15 is: 23,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.21 : 42,055.20 = 17,045.15 : x
  2. Step 2: Convert to fraction form
    30,476.21/42,055.20 = 17,045.15/x
  3. Step 3: Cross multiply
    30,476.21x = 42,055.20 × 17,045.15
  4. Step 4: Simplify right side
    30,476.21x = 716,836,982.00
  5. Step 5: Solve for x
    x = 716,836,982.00/30,476.21
  6. Step 6: Final answer
    x = 23,521.20

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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.