Home / 42,448.47-63,642.51-19,946.58

Finding the Fourth Proportional to 42,448.47, 63,642.51 and 19,946.58

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Solution

The fourth proportional to 42,448.47, 63,642.51 and 19,946.58 is: 29,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,448.47 : 63,642.51 = 19,946.58 : x
  2. Step 2: Convert to fraction form
    42,448.47/63,642.51 = 19,946.58/x
  3. Step 3: Cross multiply
    42,448.47x = 63,642.51 × 19,946.58
  4. Step 4: Simplify right side
    42,448.47x = 1,269,450,417.12
  5. Step 5: Solve for x
    x = 1,269,450,417.12/42,448.47
  6. Step 6: Final answer
    x = 29,905.68

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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.