Home / 28,686.60-42,981.36-17,570.12

Finding the Fourth Proportional to 28,686.60, 42,981.36 and 17,570.12

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Solution

The fourth proportional to 28,686.60, 42,981.36 and 17,570.12 is: 26,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.60 : 42,981.36 = 17,570.12 : x
  2. Step 2: Convert to fraction form
    28,686.60/42,981.36 = 17,570.12/x
  3. Step 3: Cross multiply
    28,686.60x = 42,981.36 × 17,570.12
  4. Step 4: Simplify right side
    28,686.60x = 755,187,652.96
  5. Step 5: Solve for x
    x = 755,187,652.96/28,686.60
  6. Step 6: Final answer
    x = 26,325.45

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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.