Home / 23,058.15-31,816.23-12,985.80

Finding the Fourth Proportional to 23,058.15, 31,816.23 and 12,985.80

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Solution

The fourth proportional to 23,058.15, 31,816.23 and 12,985.80 is: 17,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,058.15 : 31,816.23 = 12,985.80 : x
  2. Step 2: Convert to fraction form
    23,058.15/31,816.23 = 12,985.80/x
  3. Step 3: Cross multiply
    23,058.15x = 31,816.23 × 12,985.80
  4. Step 4: Simplify right side
    23,058.15x = 413,159,199.53
  5. Step 5: Solve for x
    x = 413,159,199.53/23,058.15
  6. Step 6: Final answer
    x = 17,918.14

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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.