Home / 28,363.49-42,551.58-8,643.59

Finding the Fourth Proportional to 28,363.49, 42,551.58 and 8,643.59

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Solution

The fourth proportional to 28,363.49, 42,551.58 and 8,643.59 is: 12,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.49 : 42,551.58 = 8,643.59 : x
  2. Step 2: Convert to fraction form
    28,363.49/42,551.58 = 8,643.59/x
  3. Step 3: Cross multiply
    28,363.49x = 42,551.58 × 8,643.59
  4. Step 4: Simplify right side
    28,363.49x = 367,798,411.37
  5. Step 5: Solve for x
    x = 367,798,411.37/28,363.49
  6. Step 6: Final answer
    x = 12,967.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.