Home / 30,539.99-45,807.80-9,479.52

Finding the Fourth Proportional to 30,539.99, 45,807.80 and 9,479.52

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Solution

The fourth proportional to 30,539.99, 45,807.80 and 9,479.52 is: 14,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,539.99 : 45,807.80 = 9,479.52 : x
  2. Step 2: Convert to fraction form
    30,539.99/45,807.80 = 9,479.52/x
  3. Step 3: Cross multiply
    30,539.99x = 45,807.80 × 9,479.52
  4. Step 4: Simplify right side
    30,539.99x = 434,235,956.26
  5. Step 5: Solve for x
    x = 434,235,956.26/30,539.99
  6. Step 6: Final answer
    x = 14,218.60

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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.