Home / 30,877.16-42,610.80-16,730.32

Finding the Fourth Proportional to 30,877.16, 42,610.80 and 16,730.32

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Solution

The fourth proportional to 30,877.16, 42,610.80 and 16,730.32 is: 23,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,877.16 : 42,610.80 = 16,730.32 : x
  2. Step 2: Convert to fraction form
    30,877.16/42,610.80 = 16,730.32/x
  3. Step 3: Cross multiply
    30,877.16x = 42,610.80 × 16,730.32
  4. Step 4: Simplify right side
    30,877.16x = 712,892,319.46
  5. Step 5: Solve for x
    x = 712,892,319.46/30,877.16
  6. Step 6: Final answer
    x = 23,088.01

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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.