Home / 22,828.49-31,512.07-20,434.23

Finding the Fourth Proportional to 22,828.49, 31,512.07 and 20,434.23

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Solution

The fourth proportional to 22,828.49, 31,512.07 and 20,434.23 is: 28,207.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,828.49 : 31,512.07 = 20,434.23 : x
  2. Step 2: Convert to fraction form
    22,828.49/31,512.07 = 20,434.23/x
  3. Step 3: Cross multiply
    22,828.49x = 31,512.07 × 20,434.23
  4. Step 4: Simplify right side
    22,828.49x = 643,924,886.16
  5. Step 5: Solve for x
    x = 643,924,886.16/22,828.49
  6. Step 6: Final answer
    x = 28,207.07

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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.