Home / 28,030.46-42,044.78-11,385.57

Finding the Fourth Proportional to 28,030.46, 42,044.78 and 11,385.57

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Solution

The fourth proportional to 28,030.46, 42,044.78 and 11,385.57 is: 17,077.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.46 : 42,044.78 = 11,385.57 : x
  2. Step 2: Convert to fraction form
    28,030.46/42,044.78 = 11,385.57/x
  3. Step 3: Cross multiply
    28,030.46x = 42,044.78 × 11,385.57
  4. Step 4: Simplify right side
    28,030.46x = 478,703,814.29
  5. Step 5: Solve for x
    x = 478,703,814.29/28,030.46
  6. Step 6: Final answer
    x = 17,077.98

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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.