Home / 15,631.44-21,572.88-10,606.20

Finding the Fourth Proportional to 15,631.44, 21,572.88 and 10,606.20

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Solution

The fourth proportional to 15,631.44, 21,572.88 and 10,606.20 is: 14,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.44 : 21,572.88 = 10,606.20 : x
  2. Step 2: Convert to fraction form
    15,631.44/21,572.88 = 10,606.20/x
  3. Step 3: Cross multiply
    15,631.44x = 21,572.88 × 10,606.20
  4. Step 4: Simplify right side
    15,631.44x = 228,806,279.86
  5. Step 5: Solve for x
    x = 228,806,279.86/15,631.44
  6. Step 6: Final answer
    x = 14,637.57

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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.