Home / 42,963.53-64,419.40-19,266.79

Finding the Fourth Proportional to 42,963.53, 64,419.40 and 19,266.79

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Solution

The fourth proportional to 42,963.53, 64,419.40 and 19,266.79 is: 28,888.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,963.53 : 64,419.40 = 19,266.79 : x
  2. Step 2: Convert to fraction form
    42,963.53/64,419.40 = 19,266.79/x
  3. Step 3: Cross multiply
    42,963.53x = 64,419.40 × 19,266.79
  4. Step 4: Simplify right side
    42,963.53x = 1,241,155,051.73
  5. Step 5: Solve for x
    x = 1,241,155,051.73/42,963.53
  6. Step 6: Final answer
    x = 28,888.57

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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.