Home / 25,392.10-38,262.76-21,047.35

Finding the Fourth Proportional to 25,392.10, 38,262.76 and 21,047.35

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Solution

The fourth proportional to 25,392.10, 38,262.76 and 21,047.35 is: 31,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,392.10 : 38,262.76 = 21,047.35 : x
  2. Step 2: Convert to fraction form
    25,392.10/38,262.76 = 21,047.35/x
  3. Step 3: Cross multiply
    25,392.10x = 38,262.76 × 21,047.35
  4. Step 4: Simplify right side
    25,392.10x = 805,329,701.69
  5. Step 5: Solve for x
    x = 805,329,701.69/25,392.10
  6. Step 6: Final answer
    x = 31,715.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.