Home / 22,980.60-31,712.40-14,043.12

Finding the Fourth Proportional to 22,980.60, 31,712.40 and 14,043.12

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Solution

The fourth proportional to 22,980.60, 31,712.40 and 14,043.12 is: 19,379.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,980.60 : 31,712.40 = 14,043.12 : x
  2. Step 2: Convert to fraction form
    22,980.60/31,712.40 = 14,043.12/x
  3. Step 3: Cross multiply
    22,980.60x = 31,712.40 × 14,043.12
  4. Step 4: Simplify right side
    22,980.60x = 445,341,038.69
  5. Step 5: Solve for x
    x = 445,341,038.69/22,980.60
  6. Step 6: Final answer
    x = 19,379.00

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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.