Home / 30,615.93-42,248.84-17,187.95

Finding the Fourth Proportional to 30,615.93, 42,248.84 and 17,187.95

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Solution

The fourth proportional to 30,615.93, 42,248.84 and 17,187.95 is: 23,718.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,615.93 : 42,248.84 = 17,187.95 : x
  2. Step 2: Convert to fraction form
    30,615.93/42,248.84 = 17,187.95/x
  3. Step 3: Cross multiply
    30,615.93x = 42,248.84 × 17,187.95
  4. Step 4: Simplify right side
    30,615.93x = 726,170,652.29
  5. Step 5: Solve for x
    x = 726,170,652.29/30,615.93
  6. Step 6: Final answer
    x = 23,718.72

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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.