Home / 22,971.62-31,698.40-12,901.16

Finding the Fourth Proportional to 22,971.62, 31,698.40 and 12,901.16

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Solution

The fourth proportional to 22,971.62, 31,698.40 and 12,901.16 is: 17,802.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,971.62 : 31,698.40 = 12,901.16 : x
  2. Step 2: Convert to fraction form
    22,971.62/31,698.40 = 12,901.16/x
  3. Step 3: Cross multiply
    22,971.62x = 31,698.40 × 12,901.16
  4. Step 4: Simplify right side
    22,971.62x = 408,946,130.14
  5. Step 5: Solve for x
    x = 408,946,130.14/22,971.62
  6. Step 6: Final answer
    x = 17,802.23

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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.