Home / 22,746.14-31,385.10-13,312.88

Finding the Fourth Proportional to 22,746.14, 31,385.10 and 13,312.88

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Solution

The fourth proportional to 22,746.14, 31,385.10 and 13,312.88 is: 18,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,746.14 : 31,385.10 = 13,312.88 : x
  2. Step 2: Convert to fraction form
    22,746.14/31,385.10 = 13,312.88/x
  3. Step 3: Cross multiply
    22,746.14x = 31,385.10 × 13,312.88
  4. Step 4: Simplify right side
    22,746.14x = 417,826,070.09
  5. Step 5: Solve for x
    x = 417,826,070.09/22,746.14
  6. Step 6: Final answer
    x = 18,369.10

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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.