Home / 30,072.78-45,079.47-14,501.34

Finding the Fourth Proportional to 30,072.78, 45,079.47 and 14,501.34

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Solution

The fourth proportional to 30,072.78, 45,079.47 and 14,501.34 is: 21,737.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072.78 : 45,079.47 = 14,501.34 : x
  2. Step 2: Convert to fraction form
    30,072.78/45,079.47 = 14,501.34/x
  3. Step 3: Cross multiply
    30,072.78x = 45,079.47 × 14,501.34
  4. Step 4: Simplify right side
    30,072.78x = 653,712,721.49
  5. Step 5: Solve for x
    x = 653,712,721.49/30,072.78
  6. Step 6: Final answer
    x = 21,737.69

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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.