Home / 42,620.40-63,928.29-13,038.24

Finding the Fourth Proportional to 42,620.40, 63,928.29 and 13,038.24

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Solution

The fourth proportional to 42,620.40, 63,928.29 and 13,038.24 is: 19,556.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,620.40 : 63,928.29 = 13,038.24 : x
  2. Step 2: Convert to fraction form
    42,620.40/63,928.29 = 13,038.24/x
  3. Step 3: Cross multiply
    42,620.40x = 63,928.29 × 13,038.24
  4. Step 4: Simplify right side
    42,620.40x = 833,512,315.06
  5. Step 5: Solve for x
    x = 833,512,315.06/42,620.40
  6. Step 6: Final answer
    x = 19,556.65

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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.