Home / 28,943.28-39,928.32-17,006.40

Finding the Fourth Proportional to 28,943.28, 39,928.32 and 17,006.40

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Solution

The fourth proportional to 28,943.28, 39,928.32 and 17,006.40 is: 23,460.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,943.28 : 39,928.32 = 17,006.40 : x
  2. Step 2: Convert to fraction form
    28,943.28/39,928.32 = 17,006.40/x
  3. Step 3: Cross multiply
    28,943.28x = 39,928.32 × 17,006.40
  4. Step 4: Simplify right side
    28,943.28x = 679,036,981.25
  5. Step 5: Solve for x
    x = 679,036,981.25/28,943.28
  6. Step 6: Final answer
    x = 23,460.95

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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.