Home / 30,278.72-41,784.64-17,030.72

Finding the Fourth Proportional to 30,278.72, 41,784.64 and 17,030.72

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Solution

The fourth proportional to 30,278.72, 41,784.64 and 17,030.72 is: 23,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.72 : 41,784.64 = 17,030.72 : x
  2. Step 2: Convert to fraction form
    30,278.72/41,784.64 = 17,030.72/x
  3. Step 3: Cross multiply
    30,278.72x = 41,784.64 × 17,030.72
  4. Step 4: Simplify right side
    30,278.72x = 711,622,566.03
  5. Step 5: Solve for x
    x = 711,622,566.03/30,278.72
  6. Step 6: Final answer
    x = 23,502.40

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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.