Home / 25,430.40-38,145.60-6,962.40

Finding the Fourth Proportional to 25,430.40, 38,145.60 and 6,962.40

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Solution

The fourth proportional to 25,430.40, 38,145.60 and 6,962.40 is: 10,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.40 : 38,145.60 = 6,962.40 : x
  2. Step 2: Convert to fraction form
    25,430.40/38,145.60 = 6,962.40/x
  3. Step 3: Cross multiply
    25,430.40x = 38,145.60 × 6,962.40
  4. Step 4: Simplify right side
    25,430.40x = 265,584,925.44
  5. Step 5: Solve for x
    x = 265,584,925.44/25,430.40
  6. Step 6: Final answer
    x = 10,443.60

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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.