Home / 21,048.68-29,050.32-13,503.53

Finding the Fourth Proportional to 21,048.68, 29,050.32 and 13,503.53

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Solution

The fourth proportional to 21,048.68, 29,050.32 and 13,503.53 is: 18,636.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.68 : 29,050.32 = 13,503.53 : x
  2. Step 2: Convert to fraction form
    21,048.68/29,050.32 = 13,503.53/x
  3. Step 3: Cross multiply
    21,048.68x = 29,050.32 × 13,503.53
  4. Step 4: Simplify right side
    21,048.68x = 392,281,867.63
  5. Step 5: Solve for x
    x = 392,281,867.63/21,048.68
  6. Step 6: Final answer
    x = 18,636.89

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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.