Home / 30,868.39-42,592.93-18,123.04

Finding the Fourth Proportional to 30,868.39, 42,592.93 and 18,123.04

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Solution

The fourth proportional to 30,868.39, 42,592.93 and 18,123.04 is: 25,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868.39 : 42,592.93 = 18,123.04 : x
  2. Step 2: Convert to fraction form
    30,868.39/42,592.93 = 18,123.04/x
  3. Step 3: Cross multiply
    30,868.39x = 42,592.93 × 18,123.04
  4. Step 4: Simplify right side
    30,868.39x = 771,913,374.11
  5. Step 5: Solve for x
    x = 771,913,374.11/30,868.39
  6. Step 6: Final answer
    x = 25,006.60

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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.