Home / 38,124.32-52,610.13-21,128.12

Finding the Fourth Proportional to 38,124.32, 52,610.13 and 21,128.12

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Solution

The fourth proportional to 38,124.32, 52,610.13 and 21,128.12 is: 29,156.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,124.32 : 52,610.13 = 21,128.12 : x
  2. Step 2: Convert to fraction form
    38,124.32/52,610.13 = 21,128.12/x
  3. Step 3: Cross multiply
    38,124.32x = 52,610.13 × 21,128.12
  4. Step 4: Simplify right side
    38,124.32x = 1,111,553,139.86
  5. Step 5: Solve for x
    x = 1,111,553,139.86/38,124.32
  6. Step 6: Final answer
    x = 29,156.01

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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.