Home / 28,280.84-42,403.81-9,559.10

Finding the Fourth Proportional to 28,280.84, 42,403.81 and 9,559.10

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Solution

The fourth proportional to 28,280.84, 42,403.81 and 9,559.10 is: 14,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280.84 : 42,403.81 = 9,559.10 : x
  2. Step 2: Convert to fraction form
    28,280.84/42,403.81 = 9,559.10/x
  3. Step 3: Cross multiply
    28,280.84x = 42,403.81 × 9,559.10
  4. Step 4: Simplify right side
    28,280.84x = 405,342,024.25
  5. Step 5: Solve for x
    x = 405,342,024.25/28,280.84
  6. Step 6: Final answer
    x = 14,332.75

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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.