Home / 22,820.30-31,454.30-15,263.80

Finding the Fourth Proportional to 22,820.30, 31,454.30 and 15,263.80

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Solution

The fourth proportional to 22,820.30, 31,454.30 and 15,263.80 is: 21,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,820.30 : 31,454.30 = 15,263.80 : x
  2. Step 2: Convert to fraction form
    22,820.30/31,454.30 = 15,263.80/x
  3. Step 3: Cross multiply
    22,820.30x = 31,454.30 × 15,263.80
  4. Step 4: Simplify right side
    22,820.30x = 480,112,144.34
  5. Step 5: Solve for x
    x = 480,112,144.34/22,820.30
  6. Step 6: Final answer
    x = 21,038.82

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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.