Home / 42,585.12-63,858.48-13,006.56

Finding the Fourth Proportional to 42,585.12, 63,858.48 and 13,006.56

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Solution

The fourth proportional to 42,585.12, 63,858.48 and 13,006.56 is: 19,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,585.12 : 63,858.48 = 13,006.56 : x
  2. Step 2: Convert to fraction form
    42,585.12/63,858.48 = 13,006.56/x
  3. Step 3: Cross multiply
    42,585.12x = 63,858.48 × 13,006.56
  4. Step 4: Simplify right side
    42,585.12x = 830,579,151.63
  5. Step 5: Solve for x
    x = 830,579,151.63/42,585.12
  6. Step 6: Final answer
    x = 19,503.98

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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.