Home / 30,289.48-45,404.69-14,490.38

Finding the Fourth Proportional to 30,289.48, 45,404.69 and 14,490.38

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Solution

The fourth proportional to 30,289.48, 45,404.69 and 14,490.38 is: 21,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.48 : 45,404.69 = 14,490.38 : x
  2. Step 2: Convert to fraction form
    30,289.48/45,404.69 = 14,490.38/x
  3. Step 3: Cross multiply
    30,289.48x = 45,404.69 × 14,490.38
  4. Step 4: Simplify right side
    30,289.48x = 657,931,252.94
  5. Step 5: Solve for x
    x = 657,931,252.94/30,289.48
  6. Step 6: Final answer
    x = 21,721.45

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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.