Home / 30,123.95-45,177.29-11,651.63

Finding the Fourth Proportional to 30,123.95, 45,177.29 and 11,651.63

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Solution

The fourth proportional to 30,123.95, 45,177.29 and 11,651.63 is: 17,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.95 : 45,177.29 = 11,651.63 : x
  2. Step 2: Convert to fraction form
    30,123.95/45,177.29 = 11,651.63/x
  3. Step 3: Cross multiply
    30,123.95x = 45,177.29 × 11,651.63
  4. Step 4: Simplify right side
    30,123.95x = 526,389,009.22
  5. Step 5: Solve for x
    x = 526,389,009.22/30,123.95
  6. Step 6: Final answer
    x = 17,474.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.