Home / 22,989.74-31,725.81-13,436.19

Finding the Fourth Proportional to 22,989.74, 31,725.81 and 13,436.19

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Solution

The fourth proportional to 22,989.74, 31,725.81 and 13,436.19 is: 18,541.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,989.74 : 31,725.81 = 13,436.19 : x
  2. Step 2: Convert to fraction form
    22,989.74/31,725.81 = 13,436.19/x
  3. Step 3: Cross multiply
    22,989.74x = 31,725.81 × 13,436.19
  4. Step 4: Simplify right side
    22,989.74x = 426,274,011.06
  5. Step 5: Solve for x
    x = 426,274,011.06/22,989.74
  6. Step 6: Final answer
    x = 18,541.93

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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.