Home / 31,166.34-43,009.51-18,424.11

Finding the Fourth Proportional to 31,166.34, 43,009.51 and 18,424.11

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Solution

The fourth proportional to 31,166.34, 43,009.51 and 18,424.11 is: 25,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,166.34 : 43,009.51 = 18,424.11 : x
  2. Step 2: Convert to fraction form
    31,166.34/43,009.51 = 18,424.11/x
  3. Step 3: Cross multiply
    31,166.34x = 43,009.51 × 18,424.11
  4. Step 4: Simplify right side
    31,166.34x = 792,411,851.17
  5. Step 5: Solve for x
    x = 792,411,851.17/31,166.34
  6. Step 6: Final answer
    x = 25,425.25

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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.