Home / 25,567.72-38,323.63-12,390.64

Finding the Fourth Proportional to 25,567.72, 38,323.63 and 12,390.64

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Solution

The fourth proportional to 25,567.72, 38,323.63 and 12,390.64 is: 18,572.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,567.72 : 38,323.63 = 12,390.64 : x
  2. Step 2: Convert to fraction form
    25,567.72/38,323.63 = 12,390.64/x
  3. Step 3: Cross multiply
    25,567.72x = 38,323.63 × 12,390.64
  4. Step 4: Simplify right side
    25,567.72x = 474,854,222.50
  5. Step 5: Solve for x
    x = 474,854,222.50/25,567.72
  6. Step 6: Final answer
    x = 18,572.41

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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.