Home / 30,237.69-45,356.64-12,707.47

Finding the Fourth Proportional to 30,237.69, 45,356.64 and 12,707.47

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Solution

The fourth proportional to 30,237.69, 45,356.64 and 12,707.47 is: 19,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,237.69 : 45,356.64 = 12,707.47 : x
  2. Step 2: Convert to fraction form
    30,237.69/45,356.64 = 12,707.47/x
  3. Step 3: Cross multiply
    30,237.69x = 45,356.64 × 12,707.47
  4. Step 4: Simplify right side
    30,237.69x = 576,368,142.10
  5. Step 5: Solve for x
    x = 576,368,142.10/30,237.69
  6. Step 6: Final answer
    x = 19,061.25

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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.