Home / 20,973.84-28,881.45-20,508.18

Finding the Fourth Proportional to 20,973.84, 28,881.45 and 20,508.18

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Solution

The fourth proportional to 20,973.84, 28,881.45 and 20,508.18 is: 28,240.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.84 : 28,881.45 = 20,508.18 : x
  2. Step 2: Convert to fraction form
    20,973.84/28,881.45 = 20,508.18/x
  3. Step 3: Cross multiply
    20,973.84x = 28,881.45 × 20,508.18
  4. Step 4: Simplify right side
    20,973.84x = 592,305,975.26
  5. Step 5: Solve for x
    x = 592,305,975.26/20,973.84
  6. Step 6: Final answer
    x = 28,240.23

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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.