Home / 30,281.63-45,429.75-9,505.13

Finding the Fourth Proportional to 30,281.63, 45,429.75 and 9,505.13

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Solution

The fourth proportional to 30,281.63, 45,429.75 and 9,505.13 is: 14,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.63 : 45,429.75 = 9,505.13 : x
  2. Step 2: Convert to fraction form
    30,281.63/45,429.75 = 9,505.13/x
  3. Step 3: Cross multiply
    30,281.63x = 45,429.75 × 9,505.13
  4. Step 4: Simplify right side
    30,281.63x = 431,815,452.47
  5. Step 5: Solve for x
    x = 431,815,452.47/30,281.63
  6. Step 6: Final answer
    x = 14,259.98

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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.