Home / 28,011.23-38,656.47-15,265.46

Finding the Fourth Proportional to 28,011.23, 38,656.47 and 15,265.46

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Solution

The fourth proportional to 28,011.23, 38,656.47 and 15,265.46 is: 21,066.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.23 : 38,656.47 = 15,265.46 : x
  2. Step 2: Convert to fraction form
    28,011.23/38,656.47 = 15,265.46/x
  3. Step 3: Cross multiply
    28,011.23x = 38,656.47 × 15,265.46
  4. Step 4: Simplify right side
    28,011.23x = 590,108,796.53
  5. Step 5: Solve for x
    x = 590,108,796.53/28,011.23
  6. Step 6: Final answer
    x = 21,066.86

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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.