Home / 22,686.77-31,303.12-13,253.51

Finding the Fourth Proportional to 22,686.77, 31,303.12 and 13,253.51

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Solution

The fourth proportional to 22,686.77, 31,303.12 and 13,253.51 is: 18,287.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.77 : 31,303.12 = 13,253.51 : x
  2. Step 2: Convert to fraction form
    22,686.77/31,303.12 = 13,253.51/x
  3. Step 3: Cross multiply
    22,686.77x = 31,303.12 × 13,253.51
  4. Step 4: Simplify right side
    22,686.77x = 414,876,213.95
  5. Step 5: Solve for x
    x = 414,876,213.95/22,686.77
  6. Step 6: Final answer
    x = 18,287.14

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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.