Home / 38,503.69-53,132.05-21,506.59

Finding the Fourth Proportional to 38,503.69, 53,132.05 and 21,506.59

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Solution

The fourth proportional to 38,503.69, 53,132.05 and 21,506.59 is: 29,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,503.69 : 53,132.05 = 21,506.59 : x
  2. Step 2: Convert to fraction form
    38,503.69/53,132.05 = 21,506.59/x
  3. Step 3: Cross multiply
    38,503.69x = 53,132.05 × 21,506.59
  4. Step 4: Simplify right side
    38,503.69x = 1,142,689,215.21
  5. Step 5: Solve for x
    x = 1,142,689,215.21/38,503.69
  6. Step 6: Final answer
    x = 29,677.39

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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.