Home / 17,478.20-26,166.10-15,430.20

Finding the Fourth Proportional to 17,478.20, 26,166.10 and 15,430.20

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Solution

The fourth proportional to 17,478.20, 26,166.10 and 15,430.20 is: 23,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,478.20 : 26,166.10 = 15,430.20 : x
  2. Step 2: Convert to fraction form
    17,478.20/26,166.10 = 15,430.20/x
  3. Step 3: Cross multiply
    17,478.20x = 26,166.10 × 15,430.20
  4. Step 4: Simplify right side
    17,478.20x = 403,748,156.22
  5. Step 5: Solve for x
    x = 403,748,156.22/17,478.20
  6. Step 6: Final answer
    x = 23,100.10

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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.