Home / 25,690.96-38,475.69-21,900.16

Finding the Fourth Proportional to 25,690.96, 38,475.69 and 21,900.16

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Solution

The fourth proportional to 25,690.96, 38,475.69 and 21,900.16 is: 32,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,690.96 : 38,475.69 = 21,900.16 : x
  2. Step 2: Convert to fraction form
    25,690.96/38,475.69 = 21,900.16/x
  3. Step 3: Cross multiply
    25,690.96x = 38,475.69 × 21,900.16
  4. Step 4: Simplify right side
    25,690.96x = 842,623,767.11
  5. Step 5: Solve for x
    x = 842,623,767.11/25,690.96
  6. Step 6: Final answer
    x = 32,798.45

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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.