Home / 17,615.40-24,311.76-10,903.20

Finding the Fourth Proportional to 17,615.40, 24,311.76 and 10,903.20

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Solution

The fourth proportional to 17,615.40, 24,311.76 and 10,903.20 is: 15,047.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615.40 : 24,311.76 = 10,903.20 : x
  2. Step 2: Convert to fraction form
    17,615.40/24,311.76 = 10,903.20/x
  3. Step 3: Cross multiply
    17,615.40x = 24,311.76 × 10,903.20
  4. Step 4: Simplify right side
    17,615.40x = 265,075,981.63
  5. Step 5: Solve for x
    x = 265,075,981.63/17,615.40
  6. Step 6: Final answer
    x = 15,047.97

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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.