Home / 30,075.32-41,501.08-20,365

Finding the Fourth Proportional to 30,075.32, 41,501.08 and 20,365

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Solution

The fourth proportional to 30,075.32, 41,501.08 and 20,365 is: 28,101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,075.32 : 41,501.08 = 20,365 : x
  2. Step 2: Convert to fraction form
    30,075.32/41,501.08 = 20,365/x
  3. Step 3: Cross multiply
    30,075.32x = 41,501.08 × 20,365
  4. Step 4: Simplify right side
    30,075.32x = 845,169,494.20
  5. Step 5: Solve for x
    x = 845,169,494.20/30,075.32
  6. Step 6: Final answer
    x = 28,101.76

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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.