Home / 30,285.78-45,436.23-10,564.50

Finding the Fourth Proportional to 30,285.78, 45,436.23 and 10,564.50

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Solution

The fourth proportional to 30,285.78, 45,436.23 and 10,564.50 is: 15,849.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,285.78 : 45,436.23 = 10,564.50 : x
  2. Step 2: Convert to fraction form
    30,285.78/45,436.23 = 10,564.50/x
  3. Step 3: Cross multiply
    30,285.78x = 45,436.23 × 10,564.50
  4. Step 4: Simplify right side
    30,285.78x = 480,011,051.84
  5. Step 5: Solve for x
    x = 480,011,051.84/30,285.78
  6. Step 6: Final answer
    x = 15,849.39

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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.