Home / 35,129.86-48,476.56-19,213.78

Finding the Fourth Proportional to 35,129.86, 48,476.56 and 19,213.78

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Solution

The fourth proportional to 35,129.86, 48,476.56 and 19,213.78 is: 26,513.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,129.86 : 48,476.56 = 19,213.78 : x
  2. Step 2: Convert to fraction form
    35,129.86/48,476.56 = 19,213.78/x
  3. Step 3: Cross multiply
    35,129.86x = 48,476.56 × 19,213.78
  4. Step 4: Simplify right side
    35,129.86x = 931,417,959.00
  5. Step 5: Solve for x
    x = 931,417,959.00/35,129.86
  6. Step 6: Final answer
    x = 26,513.57

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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.