Home / 19,816.50-27,359.40-17,688.30

Finding the Fourth Proportional to 19,816.50, 27,359.40 and 17,688.30

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Solution

The fourth proportional to 19,816.50, 27,359.40 and 17,688.30 is: 24,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.50 : 27,359.40 = 17,688.30 : x
  2. Step 2: Convert to fraction form
    19,816.50/27,359.40 = 17,688.30/x
  3. Step 3: Cross multiply
    19,816.50x = 27,359.40 × 17,688.30
  4. Step 4: Simplify right side
    19,816.50x = 483,941,275.02
  5. Step 5: Solve for x
    x = 483,941,275.02/19,816.50
  6. Step 6: Final answer
    x = 24,421.13

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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.