Home / 38,943.95-58,421.56-12,280.89

Finding the Fourth Proportional to 38,943.95, 58,421.56 and 12,280.89

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Solution

The fourth proportional to 38,943.95, 58,421.56 and 12,280.89 is: 18,423.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,943.95 : 58,421.56 = 12,280.89 : x
  2. Step 2: Convert to fraction form
    38,943.95/58,421.56 = 12,280.89/x
  3. Step 3: Cross multiply
    38,943.95x = 58,421.56 × 12,280.89
  4. Step 4: Simplify right side
    38,943.95x = 717,468,751.99
  5. Step 5: Solve for x
    x = 717,468,751.99/38,943.95
  6. Step 6: Final answer
    x = 18,423.11

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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.