Home / 42,314.85-58,390.38-25,315.65

Finding the Fourth Proportional to 42,314.85, 58,390.38 and 25,315.65

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Solution

The fourth proportional to 42,314.85, 58,390.38 and 25,315.65 is: 34,933.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,314.85 : 58,390.38 = 25,315.65 : x
  2. Step 2: Convert to fraction form
    42,314.85/58,390.38 = 25,315.65/x
  3. Step 3: Cross multiply
    42,314.85x = 58,390.38 × 25,315.65
  4. Step 4: Simplify right side
    42,314.85x = 1,478,190,423.45
  5. Step 5: Solve for x
    x = 1,478,190,423.45/42,314.85
  6. Step 6: Final answer
    x = 34,933.14

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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.