Home / 42,417.21-63,609.60-13,947.51

Finding the Fourth Proportional to 42,417.21, 63,609.60 and 13,947.51

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Solution

The fourth proportional to 42,417.21, 63,609.60 and 13,947.51 is: 20,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,417.21 : 63,609.60 = 13,947.51 : x
  2. Step 2: Convert to fraction form
    42,417.21/63,609.60 = 13,947.51/x
  3. Step 3: Cross multiply
    42,417.21x = 63,609.60 × 13,947.51
  4. Step 4: Simplify right side
    42,417.21x = 887,195,532.10
  5. Step 5: Solve for x
    x = 887,195,532.10/42,417.21
  6. Step 6: Final answer
    x = 20,915.93

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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.