Home / 22,690.48-31,312.02-12,618.94

Finding the Fourth Proportional to 22,690.48, 31,312.02 and 12,618.94

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Solution

The fourth proportional to 22,690.48, 31,312.02 and 12,618.94 is: 17,413.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.48 : 31,312.02 = 12,618.94 : x
  2. Step 2: Convert to fraction form
    22,690.48/31,312.02 = 12,618.94/x
  3. Step 3: Cross multiply
    22,690.48x = 31,312.02 × 12,618.94
  4. Step 4: Simplify right side
    22,690.48x = 395,124,501.66
  5. Step 5: Solve for x
    x = 395,124,501.66/22,690.48
  6. Step 6: Final answer
    x = 17,413.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.