Home / 28,409.93-42,605.58-9,430.21

Finding the Fourth Proportional to 28,409.93, 42,605.58 and 9,430.21

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Solution

The fourth proportional to 28,409.93, 42,605.58 and 9,430.21 is: 14,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.93 : 42,605.58 = 9,430.21 : x
  2. Step 2: Convert to fraction form
    28,409.93/42,605.58 = 9,430.21/x
  3. Step 3: Cross multiply
    28,409.93x = 42,605.58 × 9,430.21
  4. Step 4: Simplify right side
    28,409.93x = 401,779,566.57
  5. Step 5: Solve for x
    x = 401,779,566.57/28,409.93
  6. Step 6: Final answer
    x = 14,142.22

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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.