Home / 20,637.17-28,476.58-13,070.15

Finding the Fourth Proportional to 20,637.17, 28,476.58 and 13,070.15

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Solution

The fourth proportional to 20,637.17, 28,476.58 and 13,070.15 is: 18,035.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.17 : 28,476.58 = 13,070.15 : x
  2. Step 2: Convert to fraction form
    20,637.17/28,476.58 = 13,070.15/x
  3. Step 3: Cross multiply
    20,637.17x = 28,476.58 × 13,070.15
  4. Step 4: Simplify right side
    20,637.17x = 372,193,172.09
  5. Step 5: Solve for x
    x = 372,193,172.09/20,637.17
  6. Step 6: Final answer
    x = 18,035.09

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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.