Home / 25,237.08-34,812.72-15,789.24

Finding the Fourth Proportional to 25,237.08, 34,812.72 and 15,789.24

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Solution

The fourth proportional to 25,237.08, 34,812.72 and 15,789.24 is: 21,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,237.08 : 34,812.72 = 15,789.24 : x
  2. Step 2: Convert to fraction form
    25,237.08/34,812.72 = 15,789.24/x
  3. Step 3: Cross multiply
    25,237.08x = 34,812.72 × 15,789.24
  4. Step 4: Simplify right side
    25,237.08x = 549,666,391.13
  5. Step 5: Solve for x
    x = 549,666,391.13/25,237.08
  6. Step 6: Final answer
    x = 21,780.11

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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.