Home / 21,354.02-29,466.85-12,400.05

Finding the Fourth Proportional to 21,354.02, 29,466.85 and 12,400.05

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Solution

The fourth proportional to 21,354.02, 29,466.85 and 12,400.05 is: 17,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354.02 : 29,466.85 = 12,400.05 : x
  2. Step 2: Convert to fraction form
    21,354.02/29,466.85 = 12,400.05/x
  3. Step 3: Cross multiply
    21,354.02x = 29,466.85 × 12,400.05
  4. Step 4: Simplify right side
    21,354.02x = 365,390,413.34
  5. Step 5: Solve for x
    x = 365,390,413.34/21,354.02
  6. Step 6: Final answer
    x = 17,111.08

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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.