Home / 28,208.16-38,925.68-15,458.92

Finding the Fourth Proportional to 28,208.16, 38,925.68 and 15,458.92

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Solution

The fourth proportional to 28,208.16, 38,925.68 and 15,458.92 is: 21,332.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.16 : 38,925.68 = 15,458.92 : x
  2. Step 2: Convert to fraction form
    28,208.16/38,925.68 = 15,458.92/x
  3. Step 3: Cross multiply
    28,208.16x = 38,925.68 × 15,458.92
  4. Step 4: Simplify right side
    28,208.16x = 601,748,817.08
  5. Step 5: Solve for x
    x = 601,748,817.08/28,208.16
  6. Step 6: Final answer
    x = 21,332.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.