Home / 35,128.56-48,476.40-19,213.20

Finding the Fourth Proportional to 35,128.56, 48,476.40 and 19,213.20

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Solution

The fourth proportional to 35,128.56, 48,476.40 and 19,213.20 is: 26,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,128.56 : 48,476.40 = 19,213.20 : x
  2. Step 2: Convert to fraction form
    35,128.56/48,476.40 = 19,213.20/x
  3. Step 3: Cross multiply
    35,128.56x = 48,476.40 × 19,213.20
  4. Step 4: Simplify right side
    35,128.56x = 931,386,768.48
  5. Step 5: Solve for x
    x = 931,386,768.48/35,128.56
  6. Step 6: Final answer
    x = 26,513.66

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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.