Home / 42,569.96-63,858.27-12,988.05

Finding the Fourth Proportional to 42,569.96, 63,858.27 and 12,988.05

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Solution

The fourth proportional to 42,569.96, 63,858.27 and 12,988.05 is: 19,483.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,569.96 : 63,858.27 = 12,988.05 : x
  2. Step 2: Convert to fraction form
    42,569.96/63,858.27 = 12,988.05/x
  3. Step 3: Cross multiply
    42,569.96x = 63,858.27 × 12,988.05
  4. Step 4: Simplify right side
    42,569.96x = 829,394,212.91
  5. Step 5: Solve for x
    x = 829,394,212.91/42,569.96
  6. Step 6: Final answer
    x = 19,483.09

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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.