Home / 30,088.71-45,134.10-14,285.57

Finding the Fourth Proportional to 30,088.71, 45,134.10 and 14,285.57

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Solution

The fourth proportional to 30,088.71, 45,134.10 and 14,285.57 is: 21,428.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,088.71 : 45,134.10 = 14,285.57 : x
  2. Step 2: Convert to fraction form
    30,088.71/45,134.10 = 14,285.57/x
  3. Step 3: Cross multiply
    30,088.71x = 45,134.10 × 14,285.57
  4. Step 4: Simplify right side
    30,088.71x = 644,766,119.27
  5. Step 5: Solve for x
    x = 644,766,119.27/30,088.71
  6. Step 6: Final answer
    x = 21,428.84

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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.