Home / 30,868.90-42,599.93-17,439.89

Finding the Fourth Proportional to 30,868.90, 42,599.93 and 17,439.89

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Solution

The fourth proportional to 30,868.90, 42,599.93 and 17,439.89 is: 24,067.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868.90 : 42,599.93 = 17,439.89 : x
  2. Step 2: Convert to fraction form
    30,868.90/42,599.93 = 17,439.89/x
  3. Step 3: Cross multiply
    30,868.90x = 42,599.93 × 17,439.89
  4. Step 4: Simplify right side
    30,868.90x = 742,937,793.01
  5. Step 5: Solve for x
    x = 742,937,793.01/30,868.90
  6. Step 6: Final answer
    x = 24,067.52

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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.