Home / 40,409.40-60,614.10-15,785.40

Finding the Fourth Proportional to 40,409.40, 60,614.10 and 15,785.40

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Solution

The fourth proportional to 40,409.40, 60,614.10 and 15,785.40 is: 23,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,409.40 : 60,614.10 = 15,785.40 : x
  2. Step 2: Convert to fraction form
    40,409.40/60,614.10 = 15,785.40/x
  3. Step 3: Cross multiply
    40,409.40x = 60,614.10 × 15,785.40
  4. Step 4: Simplify right side
    40,409.40x = 956,817,814.14
  5. Step 5: Solve for x
    x = 956,817,814.14/40,409.40
  6. Step 6: Final answer
    x = 23,678.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.