Home / 28,607.60-39,480.80-16,510.25

Finding the Fourth Proportional to 28,607.60, 39,480.80 and 16,510.25

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Solution

The fourth proportional to 28,607.60, 39,480.80 and 16,510.25 is: 22,785.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.60 : 39,480.80 = 16,510.25 : x
  2. Step 2: Convert to fraction form
    28,607.60/39,480.80 = 16,510.25/x
  3. Step 3: Cross multiply
    28,607.60x = 39,480.80 × 16,510.25
  4. Step 4: Simplify right side
    28,607.60x = 651,837,598.24
  5. Step 5: Solve for x
    x = 651,837,598.24/28,607.60
  6. Step 6: Final answer
    x = 22,785.47

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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.