Home / 28,041.40-38,697.60-15,294.66

Finding the Fourth Proportional to 28,041.40, 38,697.60 and 15,294.66

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Solution

The fourth proportional to 28,041.40, 38,697.60 and 15,294.66 is: 21,106.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.40 : 38,697.60 = 15,294.66 : x
  2. Step 2: Convert to fraction form
    28,041.40/38,697.60 = 15,294.66/x
  3. Step 3: Cross multiply
    28,041.40x = 38,697.60 × 15,294.66
  4. Step 4: Simplify right side
    28,041.40x = 591,866,634.82
  5. Step 5: Solve for x
    x = 591,866,634.82/28,041.40
  6. Step 6: Final answer
    x = 21,106.89

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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.