Home / 28,439.79-39,240.50-17,106.27

Finding the Fourth Proportional to 28,439.79, 39,240.50 and 17,106.27

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Solution

The fourth proportional to 28,439.79, 39,240.50 and 17,106.27 is: 23,602.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439.79 : 39,240.50 = 17,106.27 : x
  2. Step 2: Convert to fraction form
    28,439.79/39,240.50 = 17,106.27/x
  3. Step 3: Cross multiply
    28,439.79x = 39,240.50 × 17,106.27
  4. Step 4: Simplify right side
    28,439.79x = 671,258,502.40
  5. Step 5: Solve for x
    x = 671,258,502.40/28,439.79
  6. Step 6: Final answer
    x = 23,602.79

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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.