Home / 21,058.04-31,598.13-8,587.28

Finding the Fourth Proportional to 21,058.04, 31,598.13 and 8,587.28

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Solution

The fourth proportional to 21,058.04, 31,598.13 and 8,587.28 is: 12,885.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.04 : 31,598.13 = 8,587.28 : x
  2. Step 2: Convert to fraction form
    21,058.04/31,598.13 = 8,587.28/x
  3. Step 3: Cross multiply
    21,058.04x = 31,598.13 × 8,587.28
  4. Step 4: Simplify right side
    21,058.04x = 271,341,989.79
  5. Step 5: Solve for x
    x = 271,341,989.79/21,058.04
  6. Step 6: Final answer
    x = 12,885.43

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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.