Home / 25,417.25-38,127.09-12,280.67

Finding the Fourth Proportional to 25,417.25, 38,127.09 and 12,280.67

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Solution

The fourth proportional to 25,417.25, 38,127.09 and 12,280.67 is: 18,421.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,417.25 : 38,127.09 = 12,280.67 : x
  2. Step 2: Convert to fraction form
    25,417.25/38,127.09 = 12,280.67/x
  3. Step 3: Cross multiply
    25,417.25x = 38,127.09 × 12,280.67
  4. Step 4: Simplify right side
    25,417.25x = 468,226,210.35
  5. Step 5: Solve for x
    x = 468,226,210.35/25,417.25
  6. Step 6: Final answer
    x = 18,421.59

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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.