Home / 30,860.58-42,582.56-17,428.74

Finding the Fourth Proportional to 30,860.58, 42,582.56 and 17,428.74

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Solution

The fourth proportional to 30,860.58, 42,582.56 and 17,428.74 is: 24,048.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.58 : 42,582.56 = 17,428.74 : x
  2. Step 2: Convert to fraction form
    30,860.58/42,582.56 = 17,428.74/x
  3. Step 3: Cross multiply
    30,860.58x = 42,582.56 × 17,428.74
  4. Step 4: Simplify right side
    30,860.58x = 742,160,366.77
  5. Step 5: Solve for x
    x = 742,160,366.77/30,860.58
  6. Step 6: Final answer
    x = 24,048.81

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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.