Home / 28,901.32-39,885.54-16,155.16

Finding the Fourth Proportional to 28,901.32, 39,885.54 and 16,155.16

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Solution

The fourth proportional to 28,901.32, 39,885.54 and 16,155.16 is: 22,295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.32 : 39,885.54 = 16,155.16 : x
  2. Step 2: Convert to fraction form
    28,901.32/39,885.54 = 16,155.16/x
  3. Step 3: Cross multiply
    28,901.32x = 39,885.54 × 16,155.16
  4. Step 4: Simplify right side
    28,901.32x = 644,357,280.39
  5. Step 5: Solve for x
    x = 644,357,280.39/28,901.32
  6. Step 6: Final answer
    x = 22,295.08

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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.