Home / 30,429.50-45,648.10-10,442.89

Finding the Fourth Proportional to 30,429.50, 45,648.10 and 10,442.89

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Solution

The fourth proportional to 30,429.50, 45,648.10 and 10,442.89 is: 15,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,429.50 : 45,648.10 = 10,442.89 : x
  2. Step 2: Convert to fraction form
    30,429.50/45,648.10 = 10,442.89/x
  3. Step 3: Cross multiply
    30,429.50x = 45,648.10 × 10,442.89
  4. Step 4: Simplify right side
    30,429.50x = 476,697,946.78
  5. Step 5: Solve for x
    x = 476,697,946.78/30,429.50
  6. Step 6: Final answer
    x = 15,665.65

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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.