Home / 28,437.10-42,663.40-8,715.22

Finding the Fourth Proportional to 28,437.10, 42,663.40 and 8,715.22

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Solution

The fourth proportional to 28,437.10, 42,663.40 and 8,715.22 is: 13,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,437.10 : 42,663.40 = 8,715.22 : x
  2. Step 2: Convert to fraction form
    28,437.10/42,663.40 = 8,715.22/x
  3. Step 3: Cross multiply
    28,437.10x = 42,663.40 × 8,715.22
  4. Step 4: Simplify right side
    28,437.10x = 371,820,916.95
  5. Step 5: Solve for x
    x = 371,820,916.95/28,437.10
  6. Step 6: Final answer
    x = 13,075.21

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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.