Home / 28,707.32-39,616.98-17,378.89

Finding the Fourth Proportional to 28,707.32, 39,616.98 and 17,378.89

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Solution

The fourth proportional to 28,707.32, 39,616.98 and 17,378.89 is: 23,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.32 : 39,616.98 = 17,378.89 : x
  2. Step 2: Convert to fraction form
    28,707.32/39,616.98 = 17,378.89/x
  3. Step 3: Cross multiply
    28,707.32x = 39,616.98 × 17,378.89
  4. Step 4: Simplify right side
    28,707.32x = 688,499,137.55
  5. Step 5: Solve for x
    x = 688,499,137.55/28,707.32
  6. Step 6: Final answer
    x = 23,983.40

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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.