Home / 40,988.70-56,567.16-30,899.34

Finding the Fourth Proportional to 40,988.70, 56,567.16 and 30,899.34

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Solution

The fourth proportional to 40,988.70, 56,567.16 and 30,899.34 is: 42,643.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,988.70 : 56,567.16 = 30,899.34 : x
  2. Step 2: Convert to fraction form
    40,988.70/56,567.16 = 30,899.34/x
  3. Step 3: Cross multiply
    40,988.70x = 56,567.16 × 30,899.34
  4. Step 4: Simplify right side
    40,988.70x = 1,747,887,909.67
  5. Step 5: Solve for x
    x = 1,747,887,909.67/40,988.70
  6. Step 6: Final answer
    x = 42,643.17

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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.