Home / 30,720.39-46,088.65-9,659.58

Finding the Fourth Proportional to 30,720.39, 46,088.65 and 9,659.58

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Solution

The fourth proportional to 30,720.39, 46,088.65 and 9,659.58 is: 14,491.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.39 : 46,088.65 = 9,659.58 : x
  2. Step 2: Convert to fraction form
    30,720.39/46,088.65 = 9,659.58/x
  3. Step 3: Cross multiply
    30,720.39x = 46,088.65 × 9,659.58
  4. Step 4: Simplify right side
    30,720.39x = 445,197,001.77
  5. Step 5: Solve for x
    x = 445,197,001.77/30,720.39
  6. Step 6: Final answer
    x = 14,491.91

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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.