Home / 28,041.04-42,038.52-19,131.76

Finding the Fourth Proportional to 28,041.04, 42,038.52 and 19,131.76

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Solution

The fourth proportional to 28,041.04, 42,038.52 and 19,131.76 is: 28,681.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.04 : 42,038.52 = 19,131.76 : x
  2. Step 2: Convert to fraction form
    28,041.04/42,038.52 = 19,131.76/x
  3. Step 3: Cross multiply
    28,041.04x = 42,038.52 × 19,131.76
  4. Step 4: Simplify right side
    28,041.04x = 804,270,875.40
  5. Step 5: Solve for x
    x = 804,270,875.40/28,041.04
  6. Step 6: Final answer
    x = 28,681.92

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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.