Home / 31,119.64-42,946.14-16,973.28

Finding the Fourth Proportional to 31,119.64, 42,946.14 and 16,973.28

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Solution

The fourth proportional to 31,119.64, 42,946.14 and 16,973.28 is: 23,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,119.64 : 42,946.14 = 16,973.28 : x
  2. Step 2: Convert to fraction form
    31,119.64/42,946.14 = 16,973.28/x
  3. Step 3: Cross multiply
    31,119.64x = 42,946.14 × 16,973.28
  4. Step 4: Simplify right side
    31,119.64x = 728,936,859.14
  5. Step 5: Solve for x
    x = 728,936,859.14/31,119.64
  6. Step 6: Final answer
    x = 23,423.69

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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.