Home / 22,689.77-31,307.28-13,256.51

Finding the Fourth Proportional to 22,689.77, 31,307.28 and 13,256.51

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Solution

The fourth proportional to 22,689.77, 31,307.28 and 13,256.51 is: 18,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.77 : 31,307.28 = 13,256.51 : x
  2. Step 2: Convert to fraction form
    22,689.77/31,307.28 = 13,256.51/x
  3. Step 3: Cross multiply
    22,689.77x = 31,307.28 × 13,256.51
  4. Step 4: Simplify right side
    22,689.77x = 415,025,113.86
  5. Step 5: Solve for x
    x = 415,025,113.86/22,689.77
  6. Step 6: Final answer
    x = 18,291.29

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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.