Home / 40,697.07-56,218.55-30,702.48

Finding the Fourth Proportional to 40,697.07, 56,218.55 and 30,702.48

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Solution

The fourth proportional to 40,697.07, 56,218.55 and 30,702.48 is: 42,412.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,697.07 : 56,218.55 = 30,702.48 : x
  2. Step 2: Convert to fraction form
    40,697.07/56,218.55 = 30,702.48/x
  3. Step 3: Cross multiply
    40,697.07x = 56,218.55 × 30,702.48
  4. Step 4: Simplify right side
    40,697.07x = 1,726,048,907.00
  5. Step 5: Solve for x
    x = 1,726,048,907.00/40,697.07
  6. Step 6: Final answer
    x = 42,412.12

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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.