Home / 22,615.08-31,204.31-13,663.07

Finding the Fourth Proportional to 22,615.08, 31,204.31 and 13,663.07

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Solution

The fourth proportional to 22,615.08, 31,204.31 and 13,663.07 is: 18,852.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.08 : 31,204.31 = 13,663.07 : x
  2. Step 2: Convert to fraction form
    22,615.08/31,204.31 = 13,663.07/x
  3. Step 3: Cross multiply
    22,615.08x = 31,204.31 × 13,663.07
  4. Step 4: Simplify right side
    22,615.08x = 426,346,740.04
  5. Step 5: Solve for x
    x = 426,346,740.04/22,615.08
  6. Step 6: Final answer
    x = 18,852.32

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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.