Home / 19,485.35-26,889.64-15,240.75

Finding the Fourth Proportional to 19,485.35, 26,889.64 and 15,240.75

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Solution

The fourth proportional to 19,485.35, 26,889.64 and 15,240.75 is: 21,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.35 : 26,889.64 = 15,240.75 : x
  2. Step 2: Convert to fraction form
    19,485.35/26,889.64 = 15,240.75/x
  3. Step 3: Cross multiply
    19,485.35x = 26,889.64 × 15,240.75
  4. Step 4: Simplify right side
    19,485.35x = 409,818,070.18
  5. Step 5: Solve for x
    x = 409,818,070.18/19,485.35
  6. Step 6: Final answer
    x = 21,032.11

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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.