Home / 42,416.40-63,624.60-19,088.40

Finding the Fourth Proportional to 42,416.40, 63,624.60 and 19,088.40

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Solution

The fourth proportional to 42,416.40, 63,624.60 and 19,088.40 is: 28,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,416.40 : 63,624.60 = 19,088.40 : x
  2. Step 2: Convert to fraction form
    42,416.40/63,624.60 = 19,088.40/x
  3. Step 3: Cross multiply
    42,416.40x = 63,624.60 × 19,088.40
  4. Step 4: Simplify right side
    42,416.40x = 1,214,491,814.64
  5. Step 5: Solve for x
    x = 1,214,491,814.64/42,416.40
  6. Step 6: Final answer
    x = 28,632.60

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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.