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Finding the Fourth Proportional to 28,373.53, 42,559.82 and 7,313.53

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Solution

The fourth proportional to 28,373.53, 42,559.82 and 7,313.53 is: 10,970.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.53 : 42,559.82 = 7,313.53 : x
  2. Step 2: Convert to fraction form
    28,373.53/42,559.82 = 7,313.53/x
  3. Step 3: Cross multiply
    28,373.53x = 42,559.82 × 7,313.53
  4. Step 4: Simplify right side
    28,373.53x = 311,262,483.80
  5. Step 5: Solve for x
    x = 311,262,483.80/28,373.53
  6. Step 6: Final answer
    x = 10,970.17

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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.