Home / 28,318.39-42,476.90-11,666.89

Finding the Fourth Proportional to 28,318.39, 42,476.90 and 11,666.89

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Solution

The fourth proportional to 28,318.39, 42,476.90 and 11,666.89 is: 17,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.39 : 42,476.90 = 11,666.89 : x
  2. Step 2: Convert to fraction form
    28,318.39/42,476.90 = 11,666.89/x
  3. Step 3: Cross multiply
    28,318.39x = 42,476.90 × 11,666.89
  4. Step 4: Simplify right side
    28,318.39x = 495,573,261.51
  5. Step 5: Solve for x
    x = 495,573,261.51/28,318.39
  6. Step 6: Final answer
    x = 17,500.05

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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.