Home / 30,123.17-45,123.19-14,089.76

Finding the Fourth Proportional to 30,123.17, 45,123.19 and 14,089.76

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Solution

The fourth proportional to 30,123.17, 45,123.19 and 14,089.76 is: 21,105.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.17 : 45,123.19 = 14,089.76 : x
  2. Step 2: Convert to fraction form
    30,123.17/45,123.19 = 14,089.76/x
  3. Step 3: Cross multiply
    30,123.17x = 45,123.19 × 14,089.76
  4. Step 4: Simplify right side
    30,123.17x = 635,774,917.53
  5. Step 5: Solve for x
    x = 635,774,917.53/30,123.17
  6. Step 6: Final answer
    x = 21,105.84

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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.