Home / 28,988.10-43,443.57-18,980.16

Finding the Fourth Proportional to 28,988.10, 43,443.57 and 18,980.16

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Solution

The fourth proportional to 28,988.10, 43,443.57 and 18,980.16 is: 28,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.10 : 43,443.57 = 18,980.16 : x
  2. Step 2: Convert to fraction form
    28,988.10/43,443.57 = 18,980.16/x
  3. Step 3: Cross multiply
    28,988.10x = 43,443.57 × 18,980.16
  4. Step 4: Simplify right side
    28,988.10x = 824,565,909.57
  5. Step 5: Solve for x
    x = 824,565,909.57/28,988.10
  6. Step 6: Final answer
    x = 28,444.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.