Home / 35,510.40-49,002.45-20,392.56

Finding the Fourth Proportional to 35,510.40, 49,002.45 and 20,392.56

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Solution

The fourth proportional to 35,510.40, 49,002.45 and 20,392.56 is: 28,140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,510.40 : 49,002.45 = 20,392.56 : x
  2. Step 2: Convert to fraction form
    35,510.40/49,002.45 = 20,392.56/x
  3. Step 3: Cross multiply
    35,510.40x = 49,002.45 × 20,392.56
  4. Step 4: Simplify right side
    35,510.40x = 999,285,401.77
  5. Step 5: Solve for x
    x = 999,285,401.77/35,510.40
  6. Step 6: Final answer
    x = 28,140.64

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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.