Home / 26,420.36-39,635.70-9,780.53

Finding the Fourth Proportional to 26,420.36, 39,635.70 and 9,780.53

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Solution

The fourth proportional to 26,420.36, 39,635.70 and 9,780.53 is: 14,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,420.36 : 39,635.70 = 9,780.53 : x
  2. Step 2: Convert to fraction form
    26,420.36/39,635.70 = 9,780.53/x
  3. Step 3: Cross multiply
    26,420.36x = 39,635.70 × 9,780.53
  4. Step 4: Simplify right side
    26,420.36x = 387,657,954.74
  5. Step 5: Solve for x
    x = 387,657,954.74/26,420.36
  6. Step 6: Final answer
    x = 14,672.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.