Home / 42,115.52-63,154.08-14,394.56

Finding the Fourth Proportional to 42,115.52, 63,154.08 and 14,394.56

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Solution

The fourth proportional to 42,115.52, 63,154.08 and 14,394.56 is: 21,585.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,115.52 : 63,154.08 = 14,394.56 : x
  2. Step 2: Convert to fraction form
    42,115.52/63,154.08 = 14,394.56/x
  3. Step 3: Cross multiply
    42,115.52x = 63,154.08 × 14,394.56
  4. Step 4: Simplify right side
    42,115.52x = 909,075,193.80
  5. Step 5: Solve for x
    x = 909,075,193.80/42,115.52
  6. Step 6: Final answer
    x = 21,585.28

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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.