Home / 28,938.28-43,362.54-20,070.91

Finding the Fourth Proportional to 28,938.28, 43,362.54 and 20,070.91

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Solution

The fourth proportional to 28,938.28, 43,362.54 and 20,070.91 is: 30,075.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.28 : 43,362.54 = 20,070.91 : x
  2. Step 2: Convert to fraction form
    28,938.28/43,362.54 = 20,070.91/x
  3. Step 3: Cross multiply
    28,938.28x = 43,362.54 × 20,070.91
  4. Step 4: Simplify right side
    28,938.28x = 870,325,637.71
  5. Step 5: Solve for x
    x = 870,325,637.71/28,938.28
  6. Step 6: Final answer
    x = 30,075.24

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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.