Home / 38,620.16-53,291.28-21,625.36

Finding the Fourth Proportional to 38,620.16, 53,291.28 and 21,625.36

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Solution

The fourth proportional to 38,620.16, 53,291.28 and 21,625.36 is: 29,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620.16 : 53,291.28 = 21,625.36 : x
  2. Step 2: Convert to fraction form
    38,620.16/53,291.28 = 21,625.36/x
  3. Step 3: Cross multiply
    38,620.16x = 53,291.28 × 21,625.36
  4. Step 4: Simplify right side
    38,620.16x = 1,152,443,114.86
  5. Step 5: Solve for x
    x = 1,152,443,114.86/38,620.16
  6. Step 6: Final answer
    x = 29,840.45

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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.