Home / 19,140.44-28,710.63-10,430.69

Finding the Fourth Proportional to 19,140.44, 28,710.63 and 10,430.69

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Solution

The fourth proportional to 19,140.44, 28,710.63 and 10,430.69 is: 15,646.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.44 : 28,710.63 = 10,430.69 : x
  2. Step 2: Convert to fraction form
    19,140.44/28,710.63 = 10,430.69/x
  3. Step 3: Cross multiply
    19,140.44x = 28,710.63 × 10,430.69
  4. Step 4: Simplify right side
    19,140.44x = 299,471,537.68
  5. Step 5: Solve for x
    x = 299,471,537.68/19,140.44
  6. Step 6: Final answer
    x = 15,646.02

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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.