Home / 19,403.28-26,758.35-15,437.52

Finding the Fourth Proportional to 19,403.28, 26,758.35 and 15,437.52

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Solution

The fourth proportional to 19,403.28, 26,758.35 and 15,437.52 is: 21,289.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.28 : 26,758.35 = 15,437.52 : x
  2. Step 2: Convert to fraction form
    19,403.28/26,758.35 = 15,437.52/x
  3. Step 3: Cross multiply
    19,403.28x = 26,758.35 × 15,437.52
  4. Step 4: Simplify right side
    19,403.28x = 413,082,563.29
  5. Step 5: Solve for x
    x = 413,082,563.29/19,403.28
  6. Step 6: Final answer
    x = 21,289.32

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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.