Home / 28,155,981.32-38,855,254.21-15,278,925.32

Finding the Fourth Proportional to 28,155,981.32, 38,855,254.21 and 15,278,925.32

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Solution

The fourth proportional to 28,155,981.32, 38,855,254.21 and 15,278,925.32 is: 21,084,916.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155,981.32 : 38,855,254.21 = 15,278,925.32 : x
  2. Step 2: Convert to fraction form
    28,155,981.32/38,855,254.21 = 15,278,925.32/x
  3. Step 3: Cross multiply
    28,155,981.32x = 38,855,254.21 × 15,278,925.32
  4. Step 4: Simplify right side
    28,155,981.32x = 593,666,527,169,929.38
  5. Step 5: Solve for x
    x = 593,666,527,169,929.38/28,155,981.32
  6. Step 6: Final answer
    x = 21,084,916.93

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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.