Home / 25,527.72-38,271.18-12,870.66

Finding the Fourth Proportional to 25,527.72, 38,271.18 and 12,870.66

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Solution

The fourth proportional to 25,527.72, 38,271.18 and 12,870.66 is: 19,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,527.72 : 38,271.18 = 12,870.66 : x
  2. Step 2: Convert to fraction form
    25,527.72/38,271.18 = 12,870.66/x
  3. Step 3: Cross multiply
    25,527.72x = 38,271.18 × 12,870.66
  4. Step 4: Simplify right side
    25,527.72x = 492,575,345.58
  5. Step 5: Solve for x
    x = 492,575,345.58/25,527.72
  6. Step 6: Final answer
    x = 19,295.70

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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.