Home / 22,493.24-31,011.78-18,445.20

Finding the Fourth Proportional to 22,493.24, 31,011.78 and 18,445.20

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Solution

The fourth proportional to 22,493.24, 31,011.78 and 18,445.20 is: 25,430.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,493.24 : 31,011.78 = 18,445.20 : x
  2. Step 2: Convert to fraction form
    22,493.24/31,011.78 = 18,445.20/x
  3. Step 3: Cross multiply
    22,493.24x = 31,011.78 × 18,445.20
  4. Step 4: Simplify right side
    22,493.24x = 572,018,484.46
  5. Step 5: Solve for x
    x = 572,018,484.46/22,493.24
  6. Step 6: Final answer
    x = 25,430.68

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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.