Home / 28,125.98-38,814.63-15,551.18

Finding the Fourth Proportional to 28,125.98, 38,814.63 and 15,551.18

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Solution

The fourth proportional to 28,125.98, 38,814.63 and 15,551.18 is: 21,461.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.98 : 38,814.63 = 15,551.18 : x
  2. Step 2: Convert to fraction form
    28,125.98/38,814.63 = 15,551.18/x
  3. Step 3: Cross multiply
    28,125.98x = 38,814.63 × 15,551.18
  4. Step 4: Simplify right side
    28,125.98x = 603,613,297.76
  5. Step 5: Solve for x
    x = 603,613,297.76/28,125.98
  6. Step 6: Final answer
    x = 21,461.06

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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.