Home / 42,279.81-63,423.90-15,632.79

Finding the Fourth Proportional to 42,279.81, 63,423.90 and 15,632.79

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Solution

The fourth proportional to 42,279.81, 63,423.90 and 15,632.79 is: 23,450.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,279.81 : 63,423.90 = 15,632.79 : x
  2. Step 2: Convert to fraction form
    42,279.81/63,423.90 = 15,632.79/x
  3. Step 3: Cross multiply
    42,279.81x = 63,423.90 × 15,632.79
  4. Step 4: Simplify right side
    42,279.81x = 991,492,509.68
  5. Step 5: Solve for x
    x = 991,492,509.68/42,279.81
  6. Step 6: Final answer
    x = 23,450.73

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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.