Home / 25,140.59-37,710.85-6,420.64

Finding the Fourth Proportional to 25,140.59, 37,710.85 and 6,420.64

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Solution

The fourth proportional to 25,140.59, 37,710.85 and 6,420.64 is: 9,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,140.59 : 37,710.85 = 6,420.64 : x
  2. Step 2: Convert to fraction form
    25,140.59/37,710.85 = 6,420.64/x
  3. Step 3: Cross multiply
    25,140.59x = 37,710.85 × 6,420.64
  4. Step 4: Simplify right side
    25,140.59x = 242,127,681.62
  5. Step 5: Solve for x
    x = 242,127,681.62/25,140.59
  6. Step 6: Final answer
    x = 9,630.95

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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.