Home / 28,966.81-39,977.55-17,642.95

Finding the Fourth Proportional to 28,966.81, 39,977.55 and 17,642.95

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Solution

The fourth proportional to 28,966.81, 39,977.55 and 17,642.95 is: 24,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.81 : 39,977.55 = 17,642.95 : x
  2. Step 2: Convert to fraction form
    28,966.81/39,977.55 = 17,642.95/x
  3. Step 3: Cross multiply
    28,966.81x = 39,977.55 × 17,642.95
  4. Step 4: Simplify right side
    28,966.81x = 705,321,715.88
  5. Step 5: Solve for x
    x = 705,321,715.88/28,966.81
  6. Step 6: Final answer
    x = 24,349.31

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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.