Home / 30,228.63-45,343.95-13,588.71

Finding the Fourth Proportional to 30,228.63, 45,343.95 and 13,588.71

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Solution

The fourth proportional to 30,228.63, 45,343.95 and 13,588.71 is: 20,383.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.63 : 45,343.95 = 13,588.71 : x
  2. Step 2: Convert to fraction form
    30,228.63/45,343.95 = 13,588.71/x
  3. Step 3: Cross multiply
    30,228.63x = 45,343.95 × 13,588.71
  4. Step 4: Simplify right side
    30,228.63x = 616,165,616.76
  5. Step 5: Solve for x
    x = 616,165,616.76/30,228.63
  6. Step 6: Final answer
    x = 20,383.51

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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.