Home / 28,509.05-42,752.63-9,785.59

Finding the Fourth Proportional to 28,509.05, 42,752.63 and 9,785.59

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Solution

The fourth proportional to 28,509.05, 42,752.63 and 9,785.59 is: 14,674.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.05 : 42,752.63 = 9,785.59 : x
  2. Step 2: Convert to fraction form
    28,509.05/42,752.63 = 9,785.59/x
  3. Step 3: Cross multiply
    28,509.05x = 42,752.63 × 9,785.59
  4. Step 4: Simplify right side
    28,509.05x = 418,359,708.60
  5. Step 5: Solve for x
    x = 418,359,708.60/28,509.05
  6. Step 6: Final answer
    x = 14,674.63

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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.