Home / 28,010.07-38,654.01-15,434.82

Finding the Fourth Proportional to 28,010.07, 38,654.01 and 15,434.82

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Solution

The fourth proportional to 28,010.07, 38,654.01 and 15,434.82 is: 21,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.07 : 38,654.01 = 15,434.82 : x
  2. Step 2: Convert to fraction form
    28,010.07/38,654.01 = 15,434.82/x
  3. Step 3: Cross multiply
    28,010.07x = 38,654.01 × 15,434.82
  4. Step 4: Simplify right side
    28,010.07x = 596,617,686.63
  5. Step 5: Solve for x
    x = 596,617,686.63/28,010.07
  6. Step 6: Final answer
    x = 21,300.11

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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.