Home / 42,477.01-63,708.32-12,887.71

Finding the Fourth Proportional to 42,477.01, 63,708.32 and 12,887.71

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Solution

The fourth proportional to 42,477.01, 63,708.32 and 12,887.71 is: 19,329.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,477.01 : 63,708.32 = 12,887.71 : x
  2. Step 2: Convert to fraction form
    42,477.01/63,708.32 = 12,887.71/x
  3. Step 3: Cross multiply
    42,477.01x = 63,708.32 × 12,887.71
  4. Step 4: Simplify right side
    42,477.01x = 821,054,225.70
  5. Step 5: Solve for x
    x = 821,054,225.70/42,477.01
  6. Step 6: Final answer
    x = 19,329.38

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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.