Home / 23,053.04-31,812.85-12,981.45

Finding the Fourth Proportional to 23,053.04, 31,812.85 and 12,981.45

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Solution

The fourth proportional to 23,053.04, 31,812.85 and 12,981.45 is: 17,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,053.04 : 31,812.85 = 12,981.45 : x
  2. Step 2: Convert to fraction form
    23,053.04/31,812.85 = 12,981.45/x
  3. Step 3: Cross multiply
    23,053.04x = 31,812.85 × 12,981.45
  4. Step 4: Simplify right side
    23,053.04x = 412,976,921.63
  5. Step 5: Solve for x
    x = 412,976,921.63/23,053.04
  6. Step 6: Final answer
    x = 17,914.21

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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.