Home / 28,617.84-39,472.92-17,420.40

Finding the Fourth Proportional to 28,617.84, 39,472.92 and 17,420.40

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Solution

The fourth proportional to 28,617.84, 39,472.92 and 17,420.40 is: 24,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.84 : 39,472.92 = 17,420.40 : x
  2. Step 2: Convert to fraction form
    28,617.84/39,472.92 = 17,420.40/x
  3. Step 3: Cross multiply
    28,617.84x = 39,472.92 × 17,420.40
  4. Step 4: Simplify right side
    28,617.84x = 687,634,055.57
  5. Step 5: Solve for x
    x = 687,634,055.57/28,617.84
  6. Step 6: Final answer
    x = 24,028.16

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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.