Home / 30,525.81-42,125.74-17,787.73

Finding the Fourth Proportional to 30,525.81, 42,125.74 and 17,787.73

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Solution

The fourth proportional to 30,525.81, 42,125.74 and 17,787.73 is: 24,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525.81 : 42,125.74 = 17,787.73 : x
  2. Step 2: Convert to fraction form
    30,525.81/42,125.74 = 17,787.73/x
  3. Step 3: Cross multiply
    30,525.81x = 42,125.74 × 17,787.73
  4. Step 4: Simplify right side
    30,525.81x = 749,321,131.20
  5. Step 5: Solve for x
    x = 749,321,131.20/30,525.81
  6. Step 6: Final answer
    x = 24,547.14

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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.