Home / 26,430.32-36,459.96-15,816.80

Finding the Fourth Proportional to 26,430.32, 36,459.96 and 15,816.80

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Solution

The fourth proportional to 26,430.32, 36,459.96 and 15,816.80 is: 21,818.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.32 : 36,459.96 = 15,816.80 : x
  2. Step 2: Convert to fraction form
    26,430.32/36,459.96 = 15,816.80/x
  3. Step 3: Cross multiply
    26,430.32x = 36,459.96 × 15,816.80
  4. Step 4: Simplify right side
    26,430.32x = 576,679,895.33
  5. Step 5: Solve for x
    x = 576,679,895.33/26,430.32
  6. Step 6: Final answer
    x = 21,818.88

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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.