Home / 30,620.64-45,931.12-10,899.92

Finding the Fourth Proportional to 30,620.64, 45,931.12 and 10,899.92

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Solution

The fourth proportional to 30,620.64, 45,931.12 and 10,899.92 is: 16,349.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,620.64 : 45,931.12 = 10,899.92 : x
  2. Step 2: Convert to fraction form
    30,620.64/45,931.12 = 10,899.92/x
  3. Step 3: Cross multiply
    30,620.64x = 45,931.12 × 10,899.92
  4. Step 4: Simplify right side
    30,620.64x = 500,645,533.51
  5. Step 5: Solve for x
    x = 500,645,533.51/30,620.64
  6. Step 6: Final answer
    x = 16,349.94

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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.